76612820 has 48 divisors (see below), whose sum is σ = 165715200. Its totient is φ = 29737344.

The previous prime is 76612817. The next prime is 76612853. The reversal of 76612820 is 2821667.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139787 + ... + 140333.

It is an arithmetic number, because the mean of its divisors is an integer number (3452400).

Almost surely, 2^76612820 is an apocalyptic number.

It is an amenable number.

76612820 is an abundant number, since it is smaller than the sum of its proper divisors (89102380).

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

76612820 is a wasteful number, since it uses less digits than its factorization.

76612820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 750 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 76612820 is about 8752.8749562644. The cubic root of 76612820 is about 424.7178196071.

The spelling of 76612820 in words is "seventy-six million, six hundred twelve thousand, eight hundred twenty".