22901623 has 2 divisors, whose sum is σ = 22901624. Its totient is φ = 22901622.

The previous prime is 22901587. The next prime is 22901639. The reversal of 22901623 is 32610922.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22901623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22901693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11450811 + 11450812.

It is an arithmetic number, because the mean of its divisors is an integer number (11450812).

Almost surely, 2^22901623 is an apocalyptic number.

22901623 is a deficient number, since it is larger than the sum of its proper divisors (1).

22901623 is an equidigital number, since it uses as much as digits as its factorization.

22901623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 22901623 is about 4785.5640210951. The cubic root of 22901623 is about 283.9806531488.

The spelling of 22901623 in words is "twenty-two million, nine hundred one thousand, six hundred twenty-three".