622901391 has 16 divisors (see below), whose sum is σ = 949545984. Its totient is φ = 355807584.

The previous prime is 622901381. The next prime is 622901399. The reversal of 622901391 is 193109226.

It is not a de Polignac number, because 622901391 - 2¹⁷ = 622770319 is a prime.

It is a super-2 number, since 2×622901391² = 776012285819469762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622901399) 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 15 ways as a sum of consecutive naturals, for example, 82330 + ... + 89576.

It is an arithmetic number, because the mean of its divisors is an integer number (59346624).

Almost surely, 2^622901391 is an apocalyptic number.

622901391 is a deficient number, since it is larger than the sum of its proper divisors (326644593).

622901391 is a wasteful number, since it uses less digits than its factorization.

622901391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11350.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 622901391 is about 24957.9925274450. The cubic root of 622901391 is about 854.0299480162.

The spelling of 622901391 in words is "six hundred twenty-two million, nine hundred one thousand, three hundred ninety-one".