28874586 has 32 divisors (see below), whose sum is σ = 63645120. Its totient is φ = 8676864.

The previous prime is 28874567. The next prime is 28874597. The reversal of 28874586 is 68547882.

It is a Curzon 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, 951 + ... + 7658.

It is an arithmetic number, because the mean of its divisors is an integer number (1988910).

Almost surely, 2^28874586 is an apocalyptic number.

28874586 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28874586 is an abundant number, since it is smaller than the sum of its proper divisors (34770534).

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

28874586 is a wasteful number, since it uses less digits than its factorization.

28874586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8670.

The product of its digits is 860160, while the sum is 48.

The square root of 28874586 is about 5373.5077928668. The cubic root of 28874586 is about 306.7881557608.

The spelling of 28874586 in words is "twenty-eight million, eight hundred seventy-four thousand, five hundred eighty-six".