76739988 has 24 divisors (see below), whose sum is σ = 192834208. Its totient is φ = 23612256.

The previous prime is 76739963. The next prime is 76740011. The reversal of 76739988 is 88993767.

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 7 ways as a sum of consecutive naturals, for example, 245806 + ... + 246117.

Almost surely, 2^76739988 is an apocalyptic number.

76739988 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

76739988 is an abundant number, since it is smaller than the sum of its proper divisors (116094220).

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

76739988 is a wasteful number, since it uses less digits than its factorization.

76739988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491943 (or 491941 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 57.

The square root of 76739988 is about 8760.1363003095. The cubic root of 76739988 is about 424.9526830829.

It can be divided in two parts, 767 and 39988, that added together give a triangular number (40755 = T₂₈₅).

The spelling of 76739988 in words is "seventy-six million, seven hundred thirty-nine thousand, nine hundred eighty-eight".