22572973 has 2 divisors, whose sum is σ = 22572974. Its totient is φ = 22572972.

The previous prime is 22572961. The next prime is 22573009. The reversal of 22572973 is 37927522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13410244 + 9162729 = 3662^2 + 3027^2 .

It is a cyclic number.

It is not a de Polignac number, because 22572973 - 2⁹ = 22572461 is a prime.

It is a super-2 number, since 2×22572973² = 1019078220117458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22572943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11286486 + 11286487.

It is an arithmetic number, because the mean of its divisors is an integer number (11286487).

Almost surely, 2^22572973 is an apocalyptic number.

It is an amenable number.

22572973 is a deficient number, since it is larger than the sum of its proper divisors (1).

22572973 is an equidigital number, since it uses as much as digits as its factorization.

22572973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 37.

The square root of 22572973 is about 4751.1022931526. The cubic root of 22572973 is about 282.6156802977.

The spelling of 22572973 in words is "twenty-two million, five hundred seventy-two thousand, nine hundred seventy-three".