28298874 has 16 divisors (see below), whose sum is σ = 56805408. Its totient is φ = 9398352.

The previous prime is 28298869. The next prime is 28298899. The reversal of 28298874 is 47889282.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6852 + ... + 10175.

It is an arithmetic number, because the mean of its divisors is an integer number (3550338).

Almost surely, 2^28298874 is an apocalyptic number.

28298874 is an abundant number, since it is smaller than the sum of its proper divisors (28506534).

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

28298874 is a wasteful number, since it uses less digits than its factorization.

28298874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17309.

The product of its digits is 516096, while the sum is 48.

The square root of 28298874 is about 5319.6685987005. The cubic root of 28298874 is about 304.7355012290.

The spelling of 28298874 in words is "twenty-eight million, two hundred ninety-eight thousand, eight hundred seventy-four".