620347959 has 48 divisors (see below), whose sum is σ = 1128351744. Its totient is φ = 319032000.

The previous prime is 620347943. The next prime is 620348009. The reversal of 620347959 is 959743026.

It is a happy number.

It is not a de Polignac number, because 620347959 - 2⁴ = 620347943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620347939) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65562 + ... + 74424.

It is an arithmetic number, because the mean of its divisors is an integer number (23507328).

Almost surely, 2^620347959 is an apocalyptic number.

620347959 is a deficient number, since it is larger than the sum of its proper divisors (508003785).

620347959 is a wasteful number, since it uses less digits than its factorization.

620347959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8988 (or 8985 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 620347959 is about 24906.7854007698. The cubic root of 620347959 is about 852.8613874739.

The spelling of 620347959 in words is "six hundred twenty million, three hundred forty-seven thousand, nine hundred fifty-nine".