64462689 has 8 divisors (see below), whose sum is σ = 95500320. Its totient is φ = 42975108.

The previous prime is 64462661. The next prime is 64462693. The reversal of 64462689 is 98626446.

It is not a de Polignac number, because 64462689 - 2¹² = 64458593 is a prime.

It is a super-2 number, since 2×64462689² = 8310876546221442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64462639) 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 7 ways as a sum of consecutive naturals, for example, 1193727 + ... + 1193780.

It is an arithmetic number, because the mean of its divisors is an integer number (11937540).

Almost surely, 2^64462689 is an apocalyptic number.

It is an amenable number.

64462689 is a deficient number, since it is larger than the sum of its proper divisors (31037631).

64462689 is a wasteful number, since it uses less digits than its factorization.

64462689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387516 (or 2387510 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 64462689 is about 8028.8659846830. The cubic root of 64462689 is about 400.9616217730.

The spelling of 64462689 in words is "sixty-four million, four hundred sixty-two thousand, six hundred eighty-nine".