28413656 has 16 divisors (see below), whose sum is σ = 54575640. Its totient is φ = 13860160.

The previous prime is 28413643. The next prime is 28413673. The reversal of 28413656 is 65631482.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 42986 + ... + 43641.

Almost surely, 2^28413656 is an apocalyptic number.

It is an amenable number.

28413656 is a deficient number, since it is larger than the sum of its proper divisors (26161984).

28413656 is a wasteful number, since it uses less digits than its factorization.

28413656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86674 (or 86670 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 28413656 is about 5330.4461351748. The cubic root of 28413656 is about 305.1469541769.

The spelling of 28413656 in words is "twenty-eight million, four hundred thirteen thousand, six hundred fifty-six".