622273999 has 2 divisors, whose sum is σ = 622274000. Its totient is φ = 622273998.

The previous prime is 622273987. The next prime is 622274063. The reversal of 622273999 is 999372226.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622273999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622273919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311136999 + 311137000.

It is an arithmetic number, because the mean of its divisors is an integer number (311137000).

Almost surely, 2^622273999 is an apocalyptic number.

622273999 is a deficient number, since it is larger than the sum of its proper divisors (1).

622273999 is an equidigital number, since it uses as much as digits as its factorization.

622273999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 49.

The square root of 622273999 is about 24945.4204013482. The cubic root of 622273999 is about 853.7431227621.

The spelling of 622273999 in words is "six hundred twenty-two million, two hundred seventy-three thousand, nine hundred ninety-nine".