77690107 has 24 divisors (see below), whose sum is σ = 91929600. Its totient is φ = 65395440.

The previous prime is 77690083. The next prime is 77690131. The reversal of 77690107 is 70109677.

It is an interprime number because it is at equal distance from previous prime (77690083) and next prime (77690131).

It is not a de Polignac number, because 77690107 - 2⁷ = 77689979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77690707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107694 + ... + 108412.

It is an arithmetic number, because the mean of its divisors is an integer number (3830400).

Almost surely, 2^77690107 is an apocalyptic number.

77690107 is a deficient number, since it is larger than the sum of its proper divisors (14239493).

77690107 is a wasteful number, since it uses less digits than its factorization.

77690107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 37.

The square root of 77690107 is about 8814.1991695219. The cubic root of 77690107 is about 426.6992765468.

The spelling of 77690107 in words is "seventy-seven million, six hundred ninety thousand, one hundred seven".