620297808 has 40 divisors (see below), whose sum is σ = 1725702048. Its totient is φ = 190860672.

The previous prime is 620297773. The next prime is 620297851. The reversal of 620297808 is 808792026.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 620297808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496410 + ... + 497657.

Almost surely, 2^620297808 is an apocalyptic number.

It is an amenable number.

620297808 is an abundant number, since it is smaller than the sum of its proper divisors (1105404240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620297808 is a wasteful number, since it uses less digits than its factorization.

620297808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994091 (or 994085 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 620297808 is about 24905.7786065804. The cubic root of 620297808 is about 852.8384041339.

The spelling of 620297808 in words is "six hundred twenty million, two hundred ninety-seven thousand, eight hundred eight".