66304874 has 16 divisors (see below), whose sum is σ = 101824128. Its totient is φ = 32367072.

The previous prime is 66304867. The next prime is 66304907. The reversal of 66304874 is 47840366.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59894 + ... + 60990.

It is an arithmetic number, because the mean of its divisors is an integer number (6364008).

Almost surely, 2^66304874 is an apocalyptic number.

66304874 is a deficient number, since it is larger than the sum of its proper divisors (35519254).

66304874 is a wasteful number, since it uses less digits than its factorization.

66304874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 66304874 is about 8142.7804833484. The cubic root of 66304874 is about 404.7453034580.

The spelling of 66304874 in words is "sixty-six million, three hundred four thousand, eight hundred seventy-four".