621160039 has 2 divisors, whose sum is σ = 621160040. Its totient is φ = 621160038.

The previous prime is 621160031. The next prime is 621160063. The reversal of 621160039 is 930061126.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 621160039 - 2³ = 621160031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 621159989 and 621160016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (621160031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310580019 + 310580020.

It is an arithmetic number, because the mean of its divisors is an integer number (310580020).

Almost surely, 2^621160039 is an apocalyptic number.

621160039 is a deficient number, since it is larger than the sum of its proper divisors (1).

621160039 is an equidigital number, since it uses as much as digits as its factorization.

621160039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 621160039 is about 24923.0824538218. The cubic root of 621160039 is about 853.2333774556.

The spelling of 621160039 in words is "six hundred twenty-one million, one hundred sixty thousand, thirty-nine".