77064407 has 12 divisors (see below), whose sum is σ = 90174456. Its totient is φ = 65666160.

The previous prime is 77064371. The next prime is 77064409. The reversal of 77064407 is 70446077.

It is not a de Polignac number, because 77064407 - 2⁶ = 77064343 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 (77064409) 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, 3932 + ... + 13022.

It is an arithmetic number, because the mean of its divisors is an integer number (7514538).

Almost surely, 2^77064407 is an apocalyptic number.

77064407 is a deficient number, since it is larger than the sum of its proper divisors (13110049).

77064407 is a wasteful number, since it uses less digits than its factorization.

77064407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9278 (or 9271 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 77064407 is about 8778.6335497046. The cubic root of 77064407 is about 425.5506716548.

The spelling of 77064407 in words is "seventy-seven million, sixty-four thousand, four hundred seven".