76733780 has 48 divisors (see below), whose sum is σ = 171218880. Its totient is φ = 28804608.

The previous prime is 76733777. The next prime is 76733809. The reversal of 76733780 is 8733767.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 42047 + ... + 43833.

It is an arithmetic number, because the mean of its divisors is an integer number (3567060).

Almost surely, 2^76733780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76733780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85609440).

76733780 is an abundant number, since it is smaller than the sum of its proper divisors (94485100).

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

76733780 is a wasteful number, since it uses less digits than its factorization.

76733780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928 (or 1926 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 76733780 is about 8759.7819607568. The cubic root of 76733780 is about 424.9412237057.

The spelling of 76733780 in words is "seventy-six million, seven hundred thirty-three thousand, seven hundred eighty".