621064222 has 16 divisors (see below), whose sum is σ = 954336240. Its totient is φ = 302968512.

The previous prime is 621064207. The next prime is 621064253. The reversal of 621064222 is 222460126.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83554 + ... + 90682.

It is an arithmetic number, because the mean of its divisors is an integer number (59646015).

Almost surely, 2^621064222 is an apocalyptic number.

621064222 is a deficient number, since it is larger than the sum of its proper divisors (333272018).

621064222 is a wasteful number, since it uses less digits than its factorization.

621064222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8187.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 621064222 is about 24921.1601254837. The cubic root of 621064222 is about 853.1895033805.

The spelling of 621064222 in words is "six hundred twenty-one million, sixty-four thousand, two hundred twenty-two".