28617484 has 12 divisors (see below), whose sum is σ = 57235024. Its totient is φ = 12264624.

The previous prime is 28617481. The next prime is 28617493. The reversal of 28617484 is 48471682.

28617484 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28617481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510999 + ... + 511054.

Almost surely, 2^28617484 is an apocalyptic number.

It is an amenable number.

28617484 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28617484 is a wasteful number, since it uses less digits than its factorization.

28617484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022064 (or 1022062 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 28617484 is about 5349.5311944132. The cubic root of 28617484 is about 305.8748829914.

The spelling of 28617484 in words is "twenty-eight million, six hundred seventeen thousand, four hundred eighty-four".