76669664 has 12 divisors (see below), whose sum is σ = 150943464. Its totient is φ = 38334816.

The previous prime is 76669639. The next prime is 76669667. The reversal of 76669664 is 46696667.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76669667) 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, 1197932 + ... + 1197995.

It is an arithmetic number, because the mean of its divisors is an integer number (12578622).

Almost surely, 2^76669664 is an apocalyptic number.

It is an amenable number.

76669664 is a deficient number, since it is larger than the sum of its proper divisors (74273800).

76669664 is a wasteful number, since it uses less digits than its factorization.

76669664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395937 (or 2395929 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 50.

The square root of 76669664 is about 8756.1215158311. The cubic root of 76669664 is about 424.8228355004.

The spelling of 76669664 in words is "seventy-six million, six hundred sixty-nine thousand, six hundred sixty-four".