76981782 has 32 divisors (see below), whose sum is σ = 164406528. Its totient is φ = 23972256.

The previous prime is 76981741. The next prime is 76981783. The reversal of 76981782 is 28718967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76981783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553 + ... + 12420.

It is an arithmetic number, because the mean of its divisors is an integer number (5137704).

Almost surely, 2^76981782 is an apocalyptic number.

76981782 is an abundant number, since it is smaller than the sum of its proper divisors (87424746).

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

76981782 is a wasteful number, since it uses less digits than its factorization.

76981782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13044.

The product of its digits is 338688, while the sum is 48.

The square root of 76981782 is about 8773.9262590929. The cubic root of 76981782 is about 425.3985318228.

The spelling of 76981782 in words is "seventy-six million, nine hundred eighty-one thousand, seven hundred eighty-two".