622951601 has 2 divisors, whose sum is σ = 622951602. Its totient is φ = 622951600.

The previous prime is 622951597. The next prime is 622951633. The reversal of 622951601 is 106159226.

It is a happy number.

It is an a-pointer prime, because the next prime (622951633) can be obtained adding 622951601 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 510082225 + 112869376 = 22585^2 + 10624^2 .

It is a cyclic number.

It is not a de Polignac number, because 622951601 - 2² = 622951597 is a prime.

It is not a weakly prime, because it can be changed into another prime (622951661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311475800 + 311475801.

It is an arithmetic number, because the mean of its divisors is an integer number (311475801).

Almost surely, 2^622951601 is an apocalyptic number.

It is an amenable number.

622951601 is a deficient number, since it is larger than the sum of its proper divisors (1).

622951601 is an equidigital number, since it uses as much as digits as its factorization.

622951601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 622951601 is about 24958.9983973716. The cubic root of 622951601 is about 854.0528942333.

The spelling of 622951601 in words is "six hundred twenty-two million, nine hundred fifty-one thousand, six hundred one".