620211996 has 18 divisors (see below), whose sum is σ = 1567758192. Its totient is φ = 206737320.

The previous prime is 620211983. The next prime is 620212031. The reversal of 620211996 is 699112026.

620211996 is a `hidden beast` number, since 620 + 21 + 1 + 9 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 17228111 = 620211996 / (6 + 2 + 0 + 2 + 1 + 1 + 9 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 620211996.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8614020 + ... + 8614091.

Almost surely, 2^620211996 is an apocalyptic number.

It is an amenable number.

620211996 is an abundant number, since it is smaller than the sum of its proper divisors (947546196).

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

620211996 is a wasteful number, since it uses less digits than its factorization.

620211996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17228121 (or 17228116 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 620211996 is about 24904.0558142645. The cubic root of 620211996 is about 852.7990750981.

The spelling of 620211996 in words is "six hundred twenty million, two hundred eleven thousand, nine hundred ninety-six".