28823274 has 24 divisors (see below), whose sum is σ = 64605060. Its totient is φ = 9276288.

The previous prime is 28823269. The next prime is 28823297. The reversal of 28823274 is 47232882.

It can be written as a sum of positive squares in 2 ways, for example, as 28547649 + 275625 = 5343^2 + 525^2 .

It is a super-2 number, since 2×28823274² = 1661562248158152, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 27087 + ... + 28130.

Almost surely, 2^28823274 is an apocalyptic number.

28823274 is an abundant number, since it is smaller than the sum of its proper divisors (35781786).

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

28823274 is a wasteful number, since it uses less digits than its factorization.

28823274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55254 (or 55251 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 28823274 is about 5368.7311350076. The cubic root of 28823274 is about 306.6063205665.

The spelling of 28823274 in words is "twenty-eight million, eight hundred twenty-three thousand, two hundred seventy-four".