76403866 has 32 divisors (see below), whose sum is σ = 143304192. Its totient is φ = 29680560.

The previous prime is 76403863. The next prime is 76403891. The reversal of 76403866 is 66830467.

It is a super-3 number, since 3×76403866³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (76403863) by changing a digit.

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, 83785 + ... + 84691.

It is an arithmetic number, because the mean of its divisors is an integer number (4478256).

Almost surely, 2^76403866 is an apocalyptic number.

76403866 is a deficient number, since it is larger than the sum of its proper divisors (66900326).

76403866 is a wasteful number, since it uses less digits than its factorization.

76403866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 76403866 is about 8740.9304996665. The cubic root of 76403866 is about 424.3313425475.

The spelling of 76403866 in words is "seventy-six million, four hundred three thousand, eight hundred sixty-six".