47508997 has 8 divisors (see below), whose sum is σ = 48019032. Its totient is φ = 47001600.

The previous prime is 47508991. The next prime is 47509003. The reversal of 47508997 is 79980574.

It is a happy number.

47508997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (47508991) and next prime (47509003).

It can be written as a sum of positive squares in 4 ways, for example, as 15992001 + 31516996 = 3999^2 + 5614^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47508997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47508997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47508991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73797 + ... + 74437.

It is an arithmetic number, because the mean of its divisors is an integer number (6002379).

Almost surely, 2^47508997 is an apocalyptic number.

It is an amenable number.

47508997 is a deficient number, since it is larger than the sum of its proper divisors (510035).

47508997 is a wasteful number, since it uses less digits than its factorization.

47508997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 47508997 is about 6892.6770561227. The cubic root of 47508997 is about 362.1806862298.

The spelling of 47508997 in words is "forty-seven million, five hundred eight thousand, nine hundred ninety-seven".