22023457 has 2 divisors, whose sum is σ = 22023458. Its totient is φ = 22023456.

The previous prime is 22023431. The next prime is 22023467. The reversal of 22023457 is 75432022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20939776 + 1083681 = 4576^2 + 1041^2 .

It is a cyclic number.

It is not a de Polignac number, because 22023457 - 2⁷ = 22023329 is a prime.

It is not a weakly prime, because it can be changed into another prime (22023467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11011728 + 11011729.

It is an arithmetic number, because the mean of its divisors is an integer number (11011729).

Almost surely, 2^22023457 is an apocalyptic number.

It is an amenable number.

22023457 is a deficient number, since it is larger than the sum of its proper divisors (1).

22023457 is an equidigital number, since it uses as much as digits as its factorization.

22023457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 22023457 is about 4692.9156182484. The cubic root of 22023457 is about 280.3034847175.

Adding to 22023457 its reverse (75432022), we get a palindrome (97455479).

The spelling of 22023457 in words is "twenty-two million, twenty-three thousand, four hundred fifty-seven".