28858056 has 32 divisors (see below), whose sum is σ = 72476640. Its totient is φ = 9575168.

The previous prime is 28858043. The next prime is 28858057. The reversal of 28858056 is 65085882.

It is a junction number, because it is equal to n+sod(n) for n = 28857999 and 28858017.

It is not an unprimeable number, because it can be changed into a prime (28858057) 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, 2800 + ... + 8096.

It is an arithmetic number, because the mean of its divisors is an integer number (2264895).

Almost surely, 2^28858056 is an apocalyptic number.

It is an amenable number.

28858056 is an abundant number, since it is smaller than the sum of its proper divisors (43618584).

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

28858056 is a wasteful number, since it uses less digits than its factorization.

28858056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5533 (or 5529 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 28858056 is about 5371.9694712461. The cubic root of 28858056 is about 306.7296016602.

The spelling of 28858056 in words is "twenty-eight million, eight hundred fifty-eight thousand, fifty-six".