28477056 has 32 divisors (see below), whose sum is σ = 75643200. Its totient is φ = 9492224.

The previous prime is 28477049. The next prime is 28477073. The reversal of 28477056 is 65077482.

It is a tau number, because it is divible by the number of its divisors (32).

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, 36696 + ... + 37463.

It is an arithmetic number, because the mean of its divisors is an integer number (2363850).

Almost surely, 2^28477056 is an apocalyptic number.

It is an amenable number.

28477056 is an abundant number, since it is smaller than the sum of its proper divisors (47166144).

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

28477056 is an equidigital number, since it uses as much as digits as its factorization.

28477056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74176 (or 74164 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 28477056 is about 5336.3897908605. The cubic root of 28477056 is about 305.3737458931.

The spelling of 28477056 in words is "twenty-eight million, four hundred seventy-seven thousand, fifty-six".