634586481 has 27 divisors (see below), whose sum is σ = 954901753. Its totient is φ = 421697340.

The previous prime is 634586471. The next prime is 634586507. The reversal of 634586481 is 184685436.

The square root of 634586481 is 25191.

It is a perfect power (a square), and thus also a powerful number.

634586481 is a `hidden beast` number, since 63 + 4 + 586 + 4 + 8 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (27).

It is not a de Polignac number, because 634586481 - 2⁹ = 634585969 is a prime.

It is a super-2 number, since 2×634586481² = 805400003735926722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634586431) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2040316 + ... + 2040626.

Almost surely, 2^634586481 is an apocalyptic number.

634586481 is the 25191-st square number.

634586481 is the 12596-th centered octagonal number.

It is an amenable number.

634586481 is a deficient number, since it is larger than the sum of its proper divisors (320315272).

634586481 is an frugal number, since it uses more digits than its factorization.

634586481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 314 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The cubic root of 634586481 is about 859.3371857935.

The spelling of 634586481 in words is "six hundred thirty-four million, five hundred eighty-six thousand, four hundred eighty-one".