76681284 has 12 divisors (see below), whose sum is σ = 178923024. Its totient is φ = 25560424.

The previous prime is 76681277. The next prime is 76681309. The reversal of 76681284 is 48218667.

76681284 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

76681284 is strictly pandigital in base 9.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3195042 + ... + 3195065.

It is an arithmetic number, because the mean of its divisors is an integer number (14910252).

Almost surely, 2^76681284 is an apocalyptic number.

It is an amenable number.

76681284 is an abundant number, since it is smaller than the sum of its proper divisors (102241740).

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

76681284 is a wasteful number, since it uses less digits than its factorization.

76681284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6390114 (or 6390112 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 76681284 is about 8756.7850264809. The cubic root of 76681284 is about 424.8442963657.

The spelling of 76681284 in words is "seventy-six million, six hundred eighty-one thousand, two hundred eighty-four".