28622504 has 16 divisors (see below), whose sum is σ = 53980020. Its totient is φ = 14227840.

The previous prime is 28622471. The next prime is 28622519. The reversal of 28622504 is 40522682.

It can be written as a sum of positive squares in 2 ways, for example, as 28622500 + 4 = 5350^2 + 2^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8957 + ... + 11724.

Almost surely, 2^28622504 is an apocalyptic number.

It is an amenable number.

28622504 is a deficient number, since it is larger than the sum of its proper divisors (25357516).

28622504 is a wasteful number, since it uses less digits than its factorization.

28622504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20860 (or 20856 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 28622504 is about 5350.0003738318. Note that the first 3 decimals coincide. The cubic root of 28622504 is about 305.8927671881.

The spelling of 28622504 in words is "twenty-eight million, six hundred twenty-two thousand, five hundred four".