77868092 has 24 divisors (see below), whose sum is σ = 145170144. Its totient is φ = 36419072.

The previous prime is 77868083. The next prime is 77868097. The reversal of 77868092 is 29086877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77868097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7928 + ... + 14784.

It is an arithmetic number, because the mean of its divisors is an integer number (6048756).

Almost surely, 2^77868092 is an apocalyptic number.

It is an amenable number.

77868092 is a deficient number, since it is larger than the sum of its proper divisors (67302052).

77868092 is a wasteful number, since it uses less digits than its factorization.

77868092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7045 (or 7043 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 77868092 is about 8824.2898864441. The cubic root of 77868092 is about 427.0248784836.

The spelling of 77868092 in words is "seventy-seven million, eight hundred sixty-eight thousand, ninety-two".