76666004 has 6 divisors (see below), whose sum is σ = 134165514. Its totient is φ = 38333000.

The previous prime is 76666001. The next prime is 76666019. The reversal of 76666004 is 40066667.

It can be written as a sum of positive squares in only one way, i.e., 70896400 + 5769604 = 8420^2 + 2402^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76666001) by changing a digit.

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 as a sum of consecutive naturals, namely, 9583247 + ... + 9583254.

It is an arithmetic number, because the mean of its divisors is an integer number (22360919).

Almost surely, 2^76666004 is an apocalyptic number.

It is an amenable number.

76666004 is a deficient number, since it is larger than the sum of its proper divisors (57499510).

76666004 is a wasteful number, since it uses less digits than its factorization.

76666004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19166505 (or 19166503 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 76666004 is about 8755.9125166941. The cubic root of 76666004 is about 424.8160754329.

The spelling of 76666004 in words is "seventy-six million, six hundred sixty-six thousand, four".