66828832 has 24 divisors (see below), whose sum is σ = 150365376. Its totient is φ = 28640832.

The previous prime is 66828803. The next prime is 66828899. The reversal of 66828832 is 23882866.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148948 + ... + 149395.

It is an arithmetic number, because the mean of its divisors is an integer number (6265224).

Almost surely, 2^66828832 is an apocalyptic number.

It is an amenable number.

66828832 is an abundant number, since it is smaller than the sum of its proper divisors (83536544).

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

66828832 is a wasteful number, since it uses less digits than its factorization.

66828832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298360 (or 298352 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The square root of 66828832 is about 8174.8903356559. The cubic root of 66828832 is about 405.8086409238.

The spelling of 66828832 in words is "sixty-six million, eight hundred twenty-eight thousand, eight hundred thirty-two".