620346959 has 4 divisors (see below), whose sum is σ = 620410416. Its totient is φ = 620283504.

The previous prime is 620346953. The next prime is 620346971. The reversal of 620346959 is 959643026.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 620346959 - 2⁴ = 620346943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620346953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13619 + ... + 37764.

It is an arithmetic number, because the mean of its divisors is an integer number (155102604).

Almost surely, 2^620346959 is an apocalyptic number.

620346959 is a deficient number, since it is larger than the sum of its proper divisors (63457).

620346959 is a wasteful number, since it uses less digits than its factorization.

620346959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63456.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 620346959 is about 24906.7653259110. The cubic root of 620346959 is about 852.8609292032.

The spelling of 620346959 in words is "six hundred twenty million, three hundred forty-six thousand, nine hundred fifty-nine".