22872169 has 2 divisors, whose sum is σ = 22872170. Its totient is φ = 22872168.

The previous prime is 22872163. The next prime is 22872193. The reversal of 22872169 is 96127822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22610025 + 262144 = 4755^2 + 512^2 .

It is a cyclic number.

It is not a de Polignac number, because 22872169 - 2¹¹ = 22870121 is a prime.

It is a super-2 number, since 2×22872169² = 1046272229529122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22872163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11436084 + 11436085.

It is an arithmetic number, because the mean of its divisors is an integer number (11436085).

Almost surely, 2^22872169 is an apocalyptic number.

It is an amenable number.

22872169 is a deficient number, since it is larger than the sum of its proper divisors (1).

22872169 is an equidigital number, since it uses as much as digits as its factorization.

22872169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 22872169 is about 4782.4856507887. The cubic root of 22872169 is about 283.8588574933.

The spelling of 22872169 in words is "twenty-two million, eight hundred seventy-two thousand, one hundred sixty-nine".