47001997 has 8 divisors (see below), whose sum is σ = 54219456. Its totient is φ = 39910272.

The previous prime is 47001973. The next prime is 47002003. The reversal of 47001997 is 79910074.

47001997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-47001997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47001917) 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, 30628 + ... + 32125.

It is an arithmetic number, because the mean of its divisors is an integer number (6777432).

Almost surely, 2^47001997 is an apocalyptic number.

It is an amenable number.

47001997 is a deficient number, since it is larger than the sum of its proper divisors (7217459).

47001997 is a wasteful number, since it uses less digits than its factorization.

47001997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62867.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 47001997 is about 6855.8002450480. The cubic root of 47001997 is about 360.8877191654.

The spelling of 47001997 in words is "forty-seven million, one thousand, nine hundred ninety-seven".