621160957 has 2 divisors, whose sum is σ = 621160958. Its totient is φ = 621160956.

The previous prime is 621160951. The next prime is 621161083. The reversal of 621160957 is 759061126.

621160957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 474411961 + 146748996 = 21781^2 + 12114^2 .

It is a cyclic number.

It is not a de Polignac number, because 621160957 - 2³ = 621160949 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 (621160951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310580478 + 310580479.

It is an arithmetic number, because the mean of its divisors is an integer number (310580479).

Almost surely, 2^621160957 is an apocalyptic number.

It is an amenable number.

621160957 is a deficient number, since it is larger than the sum of its proper divisors (1).

621160957 is an equidigital number, since it uses as much as digits as its factorization.

621160957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 621160957 is about 24923.1008704776. The cubic root of 621160957 is about 853.2337977809.

The spelling of 621160957 in words is "six hundred twenty-one million, one hundred sixty thousand, nine hundred fifty-seven".