622854497 has 2 divisors, whose sum is σ = 622854498. Its totient is φ = 622854496.

The previous prime is 622854461. The next prime is 622854503. The reversal of 622854497 is 794458226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 617075281 + 5779216 = 24841^2 + 2404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622854497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (622854437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311427248 + 311427249.

It is an arithmetic number, because the mean of its divisors is an integer number (311427249).

Almost surely, 2^622854497 is an apocalyptic number.

It is an amenable number.

622854497 is a deficient number, since it is larger than the sum of its proper divisors (1).

622854497 is an equidigital number, since it uses as much as digits as its factorization.

622854497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 47.

The square root of 622854497 is about 24957.0530511918. The cubic root of 622854497 is about 854.0085161138.

The spelling of 622854497 in words is "six hundred twenty-two million, eight hundred fifty-four thousand, four hundred ninety-seven".