76823980 has 12 divisors (see below), whose sum is σ = 161330400. Its totient is φ = 30729584.

The previous prime is 76823947. The next prime is 76824001. The reversal of 76823980 is 8932867.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1920580 + ... + 1920619.

It is an arithmetic number, because the mean of its divisors is an integer number (13444200).

Almost surely, 2^76823980 is an apocalyptic number.

It is an amenable number.

76823980 is an abundant number, since it is smaller than the sum of its proper divisors (84506420).

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

76823980 is a wasteful number, since it uses less digits than its factorization.

76823980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841208 (or 3841206 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 76823980 is about 8764.9289786056. The cubic root of 76823980 is about 425.1076636118.

The spelling of 76823980 in words is "seventy-six million, eight hundred twenty-three thousand, nine hundred eighty".