621675227 has 8 divisors (see below), whose sum is σ = 667262736. Its totient is φ = 577089792.

The previous prime is 621675181. The next prime is 621675239. The reversal of 621675227 is 722576126.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 621675227 - 2⁸ = 621674971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (621675277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249233 + ... + 251714.

It is an arithmetic number, because the mean of its divisors is an integer number (83407842).

Almost surely, 2^621675227 is an apocalyptic number.

621675227 is a deficient number, since it is larger than the sum of its proper divisors (45587509).

621675227 is a wasteful number, since it uses less digits than its factorization.

621675227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501037.

The product of its digits is 70560, while the sum is 38.

The square root of 621675227 is about 24933.4158710755. The cubic root of 621675227 is about 853.4692018799.

The spelling of 621675227 in words is "six hundred twenty-one million, six hundred seventy-five thousand, two hundred twenty-seven".