28497604 has 24 divisors (see below), whose sum is σ = 52698240. Its totient is φ = 13462176.

The previous prime is 28497589. The next prime is 28497607. The reversal of 28497604 is 40679482.

It is a super-2 number, since 2×28497604² = 1624226867481632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28497607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2839 + ... + 8065.

It is an arithmetic number, because the mean of its divisors is an integer number (2195760).

Almost surely, 2^28497604 is an apocalyptic number.

It is an amenable number.

28497604 is a deficient number, since it is larger than the sum of its proper divisors (24200636).

28497604 is a wasteful number, since it uses less digits than its factorization.

28497604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5307 (or 5305 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 28497604 is about 5338.3147153385. The cubic root of 28497604 is about 305.4471770688.

The spelling of 28497604 in words is "twenty-eight million, four hundred ninety-seven thousand, six hundred four".