64630461 has 32 divisors (see below), whose sum is σ = 101606400. Its totient is φ = 36524208.

The previous prime is 64630459. The next prime is 64630469. The reversal of 64630461 is 16403646.

It is not a de Polignac number, because 64630461 - 2¹ = 64630459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64630469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109810 + ... + 110396.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 2^64630461 is an apocalyptic number.

It is an amenable number.

64630461 is a deficient number, since it is larger than the sum of its proper divisors (36975939).

64630461 is a wasteful number, since it uses less digits than its factorization.

64630461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 64630461 is about 8039.3072462744. The cubic root of 64630461 is about 401.3091709208.

The spelling of 64630461 in words is "sixty-four million, six hundred thirty thousand, four hundred sixty-one".