66902704 has 20 divisors (see below), whose sum is σ = 141408360. Its totient is φ = 30410240.

The previous prime is 66902669. The next prime is 66902707. The reversal of 66902704 is 40720966.

It is a self number, because there is not a number n which added to its sum of digits gives 66902704.

It is not an unprimeable number, because it can be changed into a prime (66902707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189889 + ... + 190240.

It is an arithmetic number, because the mean of its divisors is an integer number (7070418).

Almost surely, 2^66902704 is an apocalyptic number.

It is an amenable number.

66902704 is an abundant number, since it is smaller than the sum of its proper divisors (74505656).

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

66902704 is a wasteful number, since it uses less digits than its factorization.

66902704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380148 (or 380142 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 66902704 is about 8179.4073134916. The cubic root of 66902704 is about 405.9581116239.

The spelling of 66902704 in words is "sixty-six million, nine hundred two thousand, seven hundred four".