28567922 has 16 divisors (see below), whose sum is σ = 46600920. Its totient is φ = 13079808.

The previous prime is 28567921. The next prime is 28567927. The reversal of 28567922 is 22976582.

It can be written as a sum of positive squares in 4 ways, for example, as 24690961 + 3876961 = 4969^2 + 1969^2 .

It is a super-2 number, since 2×28567922² = 1632252334796168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28567922.

It is not an unprimeable number, because it can be changed into a prime (28567921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10097 + ... + 12612.

Almost surely, 2^28567922 is an apocalyptic number.

28567922 is a deficient number, since it is larger than the sum of its proper divisors (18032998).

28567922 is a wasteful number, since it uses less digits than its factorization.

28567922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22765.

The product of its digits is 120960, while the sum is 41.

The square root of 28567922 is about 5344.8968184615. The cubic root of 28567922 is about 305.6982015961.

The spelling of 28567922 in words is "twenty-eight million, five hundred sixty-seven thousand, nine hundred twenty-two".