47385657 has 36 divisors (see below), whose sum is σ = 76746852. Its totient is φ = 28142400.

The previous prime is 47385607. The next prime is 47385659. The reversal of 47385657 is 75658374.

It can be written as a sum of positive squares in 2 ways, for example, as 23532201 + 23853456 = 4851^2 + 4884^2 .

It is not a de Polignac number, because 47385657 - 2¹⁰ = 47384633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47385659) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 57307 + ... + 58127.

It is an arithmetic number, because the mean of its divisors is an integer number (2131857).

Almost surely, 2^47385657 is an apocalyptic number.

It is an amenable number.

47385657 is a deficient number, since it is larger than the sum of its proper divisors (29361195).

47385657 is a wasteful number, since it uses less digits than its factorization.

47385657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 888 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 47385657 is about 6883.7240647777. The cubic root of 47385657 is about 361.8669907039.

The spelling of 47385657 in words is "forty-seven million, three hundred eighty-five thousand, six hundred fifty-seven".