622604429 has 2 divisors, whose sum is σ = 622604430. Its totient is φ = 622604428.

The previous prime is 622604399. The next prime is 622604443. The reversal of 622604429 is 924406226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 579701929 + 42902500 = 24077^2 + 6550^2 .

It is a cyclic number.

It is not a de Polignac number, because 622604429 - 2⁸ = 622604173 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622604029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311302214 + 311302215.

It is an arithmetic number, because the mean of its divisors is an integer number (311302215).

Almost surely, 2^622604429 is an apocalyptic number.

It is an amenable number.

622604429 is a deficient number, since it is larger than the sum of its proper divisors (1).

622604429 is an equidigital number, since it uses as much as digits as its factorization.

622604429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 622604429 is about 24952.0425817206. The cubic root of 622604429 is about 853.8942097017.

The spelling of 622604429 in words is "six hundred twenty-two million, six hundred four thousand, four hundred twenty-nine".