57471646 has 4 divisors (see below), whose sum is σ = 86207472. Its totient is φ = 28735822.

The previous prime is 57471629. The next prime is 57471653. The reversal of 57471646 is 64617475.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 57471599 and 57471608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14367910 + ... + 14367913.

It is an arithmetic number, because the mean of its divisors is an integer number (21551868).

Almost surely, 2^57471646 is an apocalyptic number.

57471646 is a deficient number, since it is larger than the sum of its proper divisors (28735826).

57471646 is a wasteful number, since it uses less digits than its factorization.

57471646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28735825.

The product of its digits is 141120, while the sum is 40.

The square root of 57471646 is about 7581.0056061185. The cubic root of 57471646 is about 385.9086784063.

The spelling of 57471646 in words is "fifty-seven million, four hundred seventy-one thousand, six hundred forty-six".