22820023 has 2 divisors, whose sum is σ = 22820024. Its totient is φ = 22820022.

The previous prime is 22819991. The next prime is 22820029. The reversal of 22820023 is 32002822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22820023 - 2⁵ = 22819991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22820029) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11410011 + 11410012.

It is an arithmetic number, because the mean of its divisors is an integer number (11410012).

Almost surely, 2^22820023 is an apocalyptic number.

22820023 is a deficient number, since it is larger than the sum of its proper divisors (1).

22820023 is an equidigital number, since it uses as much as digits as its factorization.

22820023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 22820023 is about 4777.0307723522. The cubic root of 22820023 is about 283.6429711425.

Adding to 22820023 its reverse (32002822), we get a palindrome (54822845).

The spelling of 22820023 in words is "twenty-two million, eight hundred twenty thousand, twenty-three".