66976692 has 48 divisors (see below), whose sum is σ = 160876800. Its totient is φ = 21676672.

The previous prime is 66976687. The next prime is 66976703. The reversal of 66976692 is 29667966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83638 + ... + 84434.

It is an arithmetic number, because the mean of its divisors is an integer number (3351600).

Almost surely, 2^66976692 is an apocalyptic number.

It is an amenable number.

66976692 is an abundant number, since it is smaller than the sum of its proper divisors (93900108).

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

66976692 is a wasteful number, since it uses less digits than its factorization.

66976692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000 (or 998 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 51.

The square root of 66976692 is about 8183.9288853215. The cubic root of 66976692 is about 406.1077067894.

The spelling of 66976692 in words is "sixty-six million, nine hundred seventy-six thousand, six hundred ninety-two".