47445117 has 8 divisors (see below), whose sum is σ = 63419520. Its totient is φ = 31550400.

The previous prime is 47445107. The next prime is 47445121. The reversal of 47445117 is 71154474.

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

It is not a de Polignac number, because 47445117 - 2⁸ = 47444861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47445107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18517 + ... + 20922.

It is an arithmetic number, because the mean of its divisors is an integer number (7927440).

Almost surely, 2^47445117 is an apocalyptic number.

It is an amenable number.

47445117 is a deficient number, since it is larger than the sum of its proper divisors (15974403).

47445117 is a wasteful number, since it uses less digits than its factorization.

47445117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39843.

The product of its digits is 15680, while the sum is 33.

The square root of 47445117 is about 6888.0415939511. The cubic root of 47445117 is about 362.0182855552.

The spelling of 47445117 in words is "forty-seven million, four hundred forty-five thousand, one hundred seventeen".