22604629 has 2 divisors, whose sum is σ = 22604630. Its totient is φ = 22604628.

The previous prime is 22604581. The next prime is 22604639. The reversal of 22604629 is 92640622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22344529 + 260100 = 4727^2 + 510^2 .

It is a cyclic number.

It is not a de Polignac number, because 22604629 - 2⁷ = 22604501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22604629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22604639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11302314 + 11302315.

It is an arithmetic number, because the mean of its divisors is an integer number (11302315).

Almost surely, 2^22604629 is an apocalyptic number.

It is an amenable number.

22604629 is a deficient number, since it is larger than the sum of its proper divisors (1).

22604629 is an equidigital number, since it uses as much as digits as its factorization.

22604629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 22604629 is about 4754.4325634086. The cubic root of 22604629 is about 282.7477305906.

It can be divided in two parts, 2260 and 4629, that added together give a square (6889 = 83²).

The spelling of 22604629 in words is "twenty-two million, six hundred four thousand, six hundred twenty-nine".