622723847 has 2 divisors, whose sum is σ = 622723848. Its totient is φ = 622723846.

The previous prime is 622723837. The next prime is 622723853. The reversal of 622723847 is 748327226.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 622723847 - 2⁴ = 622723831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622723817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311361923 + 311361924.

It is an arithmetic number, because the mean of its divisors is an integer number (311361924).

Almost surely, 2^622723847 is an apocalyptic number.

622723847 is a deficient number, since it is larger than the sum of its proper divisors (1).

622723847 is an equidigital number, since it uses as much as digits as its factorization.

622723847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 41.

The square root of 622723847 is about 24954.4354173762. The cubic root of 622723847 is about 853.9487996442.

The spelling of 622723847 in words is "six hundred twenty-two million, seven hundred twenty-three thousand, eight hundred forty-seven".