47685157 has 8 divisors (see below), whose sum is σ = 52224480. Its totient is φ = 43270320.

The previous prime is 47685149. The next prime is 47685167. The reversal of 47685157 is 75158674.

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

It is a cyclic number.

It is not a de Polignac number, because 47685157 - 2³ = 47685149 is a prime.

It is a super-2 number, since 2×47685157² = 4547748396229298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47685137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30319 + ... + 31852.

It is an arithmetic number, because the mean of its divisors is an integer number (6528060).

Almost surely, 2^47685157 is an apocalyptic number.

It is an amenable number.

47685157 is a deficient number, since it is larger than the sum of its proper divisors (4539323).

47685157 is a wasteful number, since it uses less digits than its factorization.

47685157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62243.

The product of its digits is 235200, while the sum is 43.

The square root of 47685157 is about 6905.4440117924. Note that the first 3 decimals coincide. The cubic root of 47685157 is about 362.6277808736.

The spelling of 47685157 in words is "forty-seven million, six hundred eighty-five thousand, one hundred fifty-seven".