622998311 has 8 divisors (see below), whose sum is σ = 677839344. Its totient is φ = 569145600.

The previous prime is 622998283. The next prime is 622998323. The reversal of 622998311 is 113899226.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 622998311 - 2⁶ = 622998247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622928311) 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 in 7 ways as a sum of consecutive naturals, for example, 245765 + ... + 248286.

It is an arithmetic number, because the mean of its divisors is an integer number (84729918).

Almost surely, 2^622998311 is an apocalyptic number.

622998311 is a deficient number, since it is larger than the sum of its proper divisors (54841033).

622998311 is a wasteful number, since it uses less digits than its factorization.

622998311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494161.

The product of its digits is 46656, while the sum is 41.

The square root of 622998311 is about 24959.9341144964. The cubic root of 622998311 is about 854.0742398261.

The spelling of 622998311 in words is "six hundred twenty-two million, nine hundred ninety-eight thousand, three hundred eleven".