28160684 has 6 divisors (see below), whose sum is σ = 49281204. Its totient is φ = 14080340.

The previous prime is 28160681. The next prime is 28160707. The reversal of 28160684 is 48606182.

It is not an unprimeable number, because it can be changed into a prime (28160681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3520082 + ... + 3520089.

It is an arithmetic number, because the mean of its divisors is an integer number (8213534).

Almost surely, 2^28160684 is an apocalyptic number.

It is an amenable number.

28160684 is a deficient number, since it is larger than the sum of its proper divisors (21120520).

28160684 is a wasteful number, since it uses less digits than its factorization.

28160684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7040175 (or 7040173 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 28160684 is about 5306.6641122272. The cubic root of 28160684 is about 304.2386601170.

The spelling of 28160684 in words is "twenty-eight million, one hundred sixty thousand, six hundred eighty-four".