28874574 has 12 divisors (see below), whose sum is σ = 62561616. Its totient is φ = 9624852.

The previous prime is 28874567. The next prime is 28874597. The reversal of 28874574 is 47547882.

28874574 is a `hidden beast` number, since 2 + 8 + 8 + 74 + 574 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 802054 + ... + 802089.

It is an arithmetic number, because the mean of its divisors is an integer number (5213468).

Almost surely, 2^28874574 is an apocalyptic number.

28874574 is an abundant number, since it is smaller than the sum of its proper divisors (33687042).

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

28874574 is a wasteful number, since it uses less digits than its factorization.

28874574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604151 (or 1604148 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The square root of 28874574 is about 5373.5066762776. The cubic root of 28874574 is about 306.7881132613.

The spelling of 28874574 in words is "twenty-eight million, eight hundred seventy-four thousand, five hundred seventy-four".