76818384 has 60 divisors (see below), whose sum is σ = 215574372. Its totient is φ = 25536000.

The previous prime is 76818353. The next prime is 76818397. The reversal of 76818384 is 48381867.

It can be written as a sum of positive squares in 2 ways, for example, as 26010000 + 50808384 = 5100^2 + 7128^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100564 + ... + 101324.

Almost surely, 2^76818384 is an apocalyptic number.

It is an amenable number.

76818384 is an abundant number, since it is smaller than the sum of its proper divisors (138755988).

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

76818384 is a wasteful number, since it uses less digits than its factorization.

76818384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476 (or 1467 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 76818384 is about 8764.6097460184. The cubic root of 76818384 is about 425.0973414865.

The spelling of 76818384 in words is "seventy-six million, eight hundred eighteen thousand, three hundred eighty-four".