64696077 has 12 divisors (see below), whose sum is σ = 96911360. Its totient is φ = 43130556.

The previous prime is 64696069. The next prime is 64696081. The reversal of 64696077 is 77069646.

It is not a de Polignac number, because 64696077 - 2³ = 64696069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64696057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132877 + ... + 133362.

Almost surely, 2^64696077 is an apocalyptic number.

It is an amenable number.

64696077 is a deficient number, since it is larger than the sum of its proper divisors (32215283).

64696077 is an equidigital number, since it uses as much as digits as its factorization.

64696077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266254 (or 266242 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 64696077 is about 8043.3871596486. The cubic root of 64696077 is about 401.4449345421. Note that the first 3 decimals are identical.

The spelling of 64696077 in words is "sixty-four million, six hundred ninety-six thousand, seventy-seven".