65630477 has 16 divisors (see below), whose sum is σ = 75254400. Its totient is φ = 56654400.

The previous prime is 65630459. The next prime is 65630527. The reversal of 65630477 is 77403656.

It is not a de Polignac number, because 65630477 - 2⁸ = 65630221 is a prime.

It is a super-2 number, since 2×65630477² = 8614719022495058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65630477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65630077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36827 + ... + 38567.

It is an arithmetic number, because the mean of its divisors is an integer number (4703400).

Almost surely, 2^65630477 is an apocalyptic number.

It is an amenable number.

65630477 is a deficient number, since it is larger than the sum of its proper divisors (9623923).

65630477 is a wasteful number, since it uses less digits than its factorization.

65630477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 65630477 is about 8101.2639137359. The cubic root of 65630477 is about 403.3683824622.

The spelling of 65630477 in words is "sixty-five million, six hundred thirty thousand, four hundred seventy-seven".