76668988 has 18 divisors (see below), whose sum is σ = 147477848. Its totient is φ = 34849320.

The previous prime is 76668979. The next prime is 76668989. The reversal of 76668988 is 88986667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76668989) 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 in 5 ways as a sum of consecutive naturals, for example, 78720 + ... + 79687.

Almost surely, 2^76668988 is an apocalyptic number.

It is an amenable number.

76668988 is a deficient number, since it is larger than the sum of its proper divisors (70808860).

76668988 is a wasteful number, since it uses less digits than its factorization.

76668988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158433 (or 158420 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 58.

The square root of 76668988 is about 8756.0829141803. The cubic root of 76668988 is about 424.8215869359.

The spelling of 76668988 in words is "seventy-six million, six hundred sixty-eight thousand, nine hundred eighty-eight".