28273752 has 64 divisors (see below), whose sum is σ = 84588000. Its totient is φ = 8698752.

The previous prime is 28273727. The next prime is 28273769. The reversal of 28273752 is 25737282.

It is a happy number.

28273752 is a `hidden beast` number, since 282 + 7 + 375 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2227 + ... + 7842.

Almost surely, 2^28273752 is an apocalyptic number.

It is an amenable number.

28273752 is an abundant number, since it is smaller than the sum of its proper divisors (56314248).

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

28273752 is a wasteful number, since it uses less digits than its factorization.

28273752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10097 (or 10087 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 28273752 is about 5317.3068371122. The cubic root of 28273752 is about 304.6452993861.

The spelling of 28273752 in words is "twenty-eight million, two hundred seventy-three thousand, seven hundred fifty-two".