28756248 has 32 divisors (see below), whose sum is σ = 76120560. Its totient is φ = 9021440.

The previous prime is 28756243. The next prime is 28756267. The reversal of 28756248 is 84265782.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28756243) 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, 34833 + ... + 35648.

Almost surely, 2^28756248 is an apocalyptic number.

It is an amenable number.

28756248 is an abundant number, since it is smaller than the sum of its proper divisors (47364312).

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

28756248 is a wasteful number, since it uses less digits than its factorization.

28756248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70507 (or 70503 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 28756248 is about 5362.4852447349. The cubic root of 28756248 is about 306.3684740564.

The spelling of 28756248 in words is "twenty-eight million, seven hundred fifty-six thousand, two hundred forty-eight".