622486691 has 2 divisors, whose sum is σ = 622486692. Its totient is φ = 622486690.

The previous prime is 622486681. The next prime is 622486703. The reversal of 622486691 is 196684226.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 622486691 - 2²⁶ = 555377827 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (622486661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311243345 + 311243346.

It is an arithmetic number, because the mean of its divisors is an integer number (311243346).

Almost surely, 2^622486691 is an apocalyptic number.

622486691 is a deficient number, since it is larger than the sum of its proper divisors (1).

622486691 is an equidigital number, since it uses as much as digits as its factorization.

622486691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 44.

The square root of 622486691 is about 24949.6831843613. The cubic root of 622486691 is about 853.8403809089.

The spelling of 622486691 in words is "six hundred twenty-two million, four hundred eighty-six thousand, six hundred ninety-one".