622652731 has 2 divisors, whose sum is σ = 622652732. Its totient is φ = 622652730.

The previous prime is 622652683. The next prime is 622652759. The reversal of 622652731 is 137256226.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 622652731 - 2¹¹ = 622650683 is a prime.

It is a super-2 number, since 2×622652731² = 775392846843516722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (622652791) 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, 311326365 + 311326366.

It is an arithmetic number, because the mean of its divisors is an integer number (311326366).

Almost surely, 2^622652731 is an apocalyptic number.

622652731 is a deficient number, since it is larger than the sum of its proper divisors (1).

622652731 is an equidigital number, since it uses as much as digits as its factorization.

622652731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 34.

The square root of 622652731 is about 24953.0104596620. The cubic root of 622652731 is about 853.9162909942.

The spelling of 622652731 in words is "six hundred twenty-two million, six hundred fifty-two thousand, seven hundred thirty-one".