478695657 has 8 divisors (see below), whose sum is σ = 696284640. Its totient is φ = 290118560.

The previous prime is 478695643. The next prime is 478695683. The reversal of 478695657 is 756596874.

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 478695657 - 2⁴ = 478695641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 478695597 and 478695606.

It is not an unprimeable number, because it can be changed into a prime (478695457) 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, 7252932 + ... + 7252997.

It is an arithmetic number, because the mean of its divisors is an integer number (87035580).

Almost surely, 2^478695657 is an apocalyptic number.

It is an amenable number.

478695657 is a deficient number, since it is larger than the sum of its proper divisors (217588983).

478695657 is a wasteful number, since it uses less digits than its factorization.

478695657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14505943.

The product of its digits is 12700800, while the sum is 57.

The square root of 478695657 is about 21879.1146301673. The cubic root of 478695657 is about 782.2636723336.

The spelling of 478695657 in words is "four hundred seventy-eight million, six hundred ninety-five thousand, six hundred fifty-seven".