620257608 has 32 divisors (see below), whose sum is σ = 1722938400. Its totient is φ = 206752464.

The previous prime is 620257607. The next prime is 620257639. The reversal of 620257608 is 806752026.

620257608 is a `hidden beast` number, since 6 + 20 + 25 + 7 + 608 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (620257607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1435566 + ... + 1435997.

It is an arithmetic number, because the mean of its divisors is an integer number (53841825).

Almost surely, 2^620257608 is an apocalyptic number.

It is an amenable number.

620257608 is an abundant number, since it is smaller than the sum of its proper divisors (1102680792).

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

620257608 is a wasteful number, since it uses less digits than its factorization.

620257608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871578 (or 2871568 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 620257608 is about 24904.9715518810. The cubic root of 620257608 is about 852.8199802715.

The spelling of 620257608 in words is "six hundred twenty million, two hundred fifty-seven thousand, six hundred eight".