76661268 has 24 divisors (see below), whose sum is σ = 185045280. Its totient is φ = 24672480.

The previous prime is 76661251. The next prime is 76661281. The reversal of 76661268 is 86216667.

It is a happy number.

It is a super-2 number, since 2×76661268² = 11753900022735648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109798 + ... + 110493.

It is an arithmetic number, because the mean of its divisors is an integer number (7710220).

Almost surely, 2^76661268 is an apocalyptic number.

It is an amenable number.

76661268 is an abundant number, since it is smaller than the sum of its proper divisors (108384012).

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

76661268 is a wasteful number, since it uses less digits than its factorization.

76661268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220327 (or 220325 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 76661268 is about 8755.6420666905. The cubic root of 76661268 is about 424.8073276601.

The spelling of 76661268 in words is "seventy-six million, six hundred sixty-one thousand, two hundred sixty-eight".