77064464 has 20 divisors (see below), whose sum is σ = 149521680. Its totient is φ = 38478240.

The previous prime is 77064433. The next prime is 77064469. The reversal of 77064464 is 46446077.

It is a super-2 number, since 2×77064464² = 11877863223214592, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (77064469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10007 + ... + 15945.

It is an arithmetic number, because the mean of its divisors is an integer number (7476084).

Almost surely, 2^77064464 is an apocalyptic number.

It is an amenable number.

77064464 is a deficient number, since it is larger than the sum of its proper divisors (72457216).

77064464 is a wasteful number, since it uses less digits than its factorization.

77064464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6758 (or 6752 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The square root of 77064464 is about 8778.6367962230. The cubic root of 77064464 is about 425.5507765730.

The spelling of 77064464 in words is "seventy-seven million, sixty-four thousand, four hundred sixty-four".