77230507 has 16 divisors (see below), whose sum is σ = 84542400. Its totient is φ = 70253568.

The previous prime is 77230493. The next prime is 77230523. The reversal of 77230507 is 70503277.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77230507 is a prime.

It is a super-2 number, since 2×77230507² = 11929102422954098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77230547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124863 + ... + 125479.

It is an arithmetic number, because the mean of its divisors is an integer number (5283900).

Almost surely, 2^77230507 is an apocalyptic number.

77230507 is a deficient number, since it is larger than the sum of its proper divisors (7311893).

77230507 is a wasteful number, since it uses less digits than its factorization.

77230507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870.

The product of its (nonzero) digits is 10290, while the sum is 31.

The square root of 77230507 is about 8788.0889276338. The cubic root of 77230507 is about 425.8561877262.

The spelling of 77230507 in words is "seventy-seven million, two hundred thirty thousand, five hundred seven".