464031657 has 6 divisors (see below), whose sum is σ = 670267962. Its totient is φ = 309354432.

The previous prime is 464031629. The next prime is 464031683. The reversal of 464031657 is 756130464.

It is a happy number.

464031657 is a `hidden beast` number, since 4 + 640 + 3 + 1 + 6 + 5 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 409212441 + 54819216 = 20229^2 + 7404^2 .

It is not a de Polignac number, because 464031657 - 2²⁴ = 447254441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (464033657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25779528 + ... + 25779545.

It is an arithmetic number, because the mean of its divisors is an integer number (111711327).

Almost surely, 2^464031657 is an apocalyptic number.

It is an amenable number.

464031657 is a deficient number, since it is larger than the sum of its proper divisors (206236305).

464031657 is a wasteful number, since it uses less digits than its factorization.

464031657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51559079 (or 51559076 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 464031657 is about 21541.3940356700. The cubic root of 464031657 is about 774.1929340961.

The spelling of 464031657 in words is "four hundred sixty-four million, thirty-one thousand, six hundred fifty-seven".