76728824 has 16 divisors (see below), whose sum is σ = 147755400. Its totient is φ = 37327392.

The previous prime is 76728811. The next prime is 76728833. The reversal of 76728824 is 42882767.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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 3 ways as a sum of consecutive naturals, for example, 129314 + ... + 129905.

Almost surely, 2^76728824 is an apocalyptic number.

76728824 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

76728824 is a deficient number, since it is larger than the sum of its proper divisors (71026576).

76728824 is a wasteful number, since it uses less digits than its factorization.

76728824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259262 (or 259258 counting only the distinct ones).

The product of its digits is 301056, while the sum is 44.

The square root of 76728824 is about 8759.4990724356. The cubic root of 76728824 is about 424.9320749577.

The spelling of 76728824 in words is "seventy-six million, seven hundred twenty-eight thousand, eight hundred twenty-four".