622571489 has 2 divisors, whose sum is σ = 622571490. Its totient is φ = 622571488.

The previous prime is 622571483. The next prime is 622571497. The reversal of 622571489 is 984175226.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 588547600 + 34023889 = 24260^2 + 5833^2 .

It is a cyclic number.

It is not a de Polignac number, because 622571489 - 2⁴ = 622571473 is a prime.

It is not a weakly prime, because it can be changed into another prime (622571483) 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, 311285744 + 311285745.

It is an arithmetic number, because the mean of its divisors is an integer number (311285745).

Almost surely, 2^622571489 is an apocalyptic number.

It is an amenable number.

622571489 is a deficient number, since it is larger than the sum of its proper divisors (1).

622571489 is an equidigital number, since it uses as much as digits as its factorization.

622571489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 622571489 is about 24951.3825067871. The cubic root of 622571489 is about 853.8791505030.

The spelling of 622571489 in words is "six hundred twenty-two million, five hundred seventy-one thousand, four hundred eighty-nine".