22079871 has 20 divisors (see below), whose sum is σ = 35983464. Its totient is φ = 13381200.

The previous prime is 22079857. The next prime is 22079887. The reversal of 22079871 is 17897022.

It is not a de Polignac number, because 22079871 - 2⁹ = 22079359 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22079831) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11500 + ... + 13281.

Almost surely, 2^22079871 is an apocalyptic number.

22079871 is a deficient number, since it is larger than the sum of its proper divisors (13903593).

22079871 is a wasteful number, since it uses less digits than its factorization.

22079871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24804 (or 24795 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 22079871 is about 4698.9223232567. The cubic root of 22079871 is about 280.5426169913.

The spelling of 22079871 in words is "twenty-two million, seventy-nine thousand, eight hundred seventy-one".