76991068 has 24 divisors (see below), whose sum is σ = 167981184. Its totient is φ = 29996400.

The previous prime is 76991053. The next prime is 76991069. The reversal of 76991068 is 86019967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76991069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124678 + ... + 125293.

It is an arithmetic number, because the mean of its divisors is an integer number (6999216).

Almost surely, 2^76991068 is an apocalyptic number.

It is an amenable number.

76991068 is an abundant number, since it is smaller than the sum of its proper divisors (90990116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76991068 is a wasteful number, since it uses less digits than its factorization.

76991068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249993 (or 249991 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 76991068 is about 8774.4554246973. The cubic root of 76991068 is about 425.4156358347.

The spelling of 76991068 in words is "seventy-six million, nine hundred ninety-one thousand, sixty-eight".