621772204 has 12 divisors (see below), whose sum is σ = 1091134800. Its totient is φ = 310019408.

The previous prime is 621772201. The next prime is 621772223. The reversal of 621772204 is 402277126.

It is not an unprimeable number, because it can be changed into a prime (621772201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215059 + ... + 217930.

It is an arithmetic number, because the mean of its divisors is an integer number (90927900).

Almost surely, 2^621772204 is an apocalyptic number.

It is an amenable number.

621772204 is a deficient number, since it is larger than the sum of its proper divisors (469362596).

621772204 is a wasteful number, since it uses less digits than its factorization.

621772204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433352 (or 433350 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 621772204 is about 24935.3605147389. The cubic root of 621772204 is about 853.5135779870.

The spelling of 621772204 in words is "six hundred twenty-one million, seven hundred seventy-two thousand, two hundred four".