28673256 has 32 divisors (see below), whose sum is σ = 71897760. Its totient is φ = 9529152.

The previous prime is 28673251. The next prime is 28673269. The reversal of 28673256 is 65237682.

It is not an unprimeable number, because it can be changed into a prime (28673251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7351 + ... + 10553.

It is an arithmetic number, because the mean of its divisors is an integer number (2246805).

Almost surely, 2^28673256 is an apocalyptic number.

It is an amenable number.

28673256 is an abundant number, since it is smaller than the sum of its proper divisors (43224504).

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

28673256 is a wasteful number, since it uses less digits than its factorization.

28673256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585 (or 3581 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 28673256 is about 5354.7414503410. The cubic root of 28673256 is about 306.0734583777.

The spelling of 28673256 in words is "twenty-eight million, six hundred seventy-three thousand, two hundred fifty-six".