77690696 has 16 divisors (see below), whose sum is σ = 153337200. Its totient is φ = 36800784.

The previous prime is 77690689. The next prime is 77690699. The reversal of 77690696 is 69609677.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77690699) 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, 255410 + ... + 255713.

It is an arithmetic number, because the mean of its divisors is an integer number (9583575).

Almost surely, 2^77690696 is an apocalyptic number.

77690696 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

77690696 is a deficient number, since it is larger than the sum of its proper divisors (75646504).

77690696 is a wasteful number, since it uses less digits than its factorization.

77690696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511148 (or 511144 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 77690696 is about 8814.2325814560. The cubic root of 77690696 is about 426.7003548704.

The spelling of 77690696 in words is "seventy-seven million, six hundred ninety thousand, six hundred ninety-six".