622958447 has 2 divisors, whose sum is σ = 622958448. Its totient is φ = 622958446.

The previous prime is 622958443. The next prime is 622958459. The reversal of 622958447 is 744859226.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 622958447 - 2² = 622958443 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622958443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311479223 + 311479224.

It is an arithmetic number, because the mean of its divisors is an integer number (311479224).

Almost surely, 2^622958447 is an apocalyptic number.

622958447 is a deficient number, since it is larger than the sum of its proper divisors (1).

622958447 is an equidigital number, since it uses as much as digits as its factorization.

622958447 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 622958447 is about 24959.1355419213. The cubic root of 622958447 is about 854.0560227934.

The spelling of 622958447 in words is "six hundred twenty-two million, nine hundred fifty-eight thousand, four hundred forty-seven".