76387820 has 24 divisors (see below), whose sum is σ = 160943328. Its totient is φ = 30454400.

The previous prime is 76387793. The next prime is 76387837. The reversal of 76387820 is 2878367.

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, 80 + ... + 12360.

It is an arithmetic number, because the mean of its divisors is an integer number (6705972).

Almost surely, 2^76387820 is an apocalyptic number.

It is an amenable number.

76387820 is an abundant number, since it is smaller than the sum of its proper divisors (84555508).

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

76387820 is a wasteful number, since it uses less digits than its factorization.

76387820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12601 (or 12599 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 76387820 is about 8740.0125858033. The cubic root of 76387820 is about 424.3016350741.

The spelling of 76387820 in words is "seventy-six million, three hundred eighty-seven thousand, eight hundred twenty".