621379353 has 8 divisors (see below), whose sum is σ = 946863808. Its totient is φ = 355073904.

The previous prime is 621379333. The next prime is 621379357. The reversal of 621379353 is 353973126.

621379353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 621379353 - 2⁵ = 621379321 is a prime.

It is a super-2 number, since 2×621379353² = 772224600669397218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (621379357) 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, 14794726 + ... + 14794767.

It is an arithmetic number, because the mean of its divisors is an integer number (118357976).

Almost surely, 2^621379353 is an apocalyptic number.

It is an amenable number.

621379353 is a deficient number, since it is larger than the sum of its proper divisors (325484455).

621379353 is a wasteful number, since it uses less digits than its factorization.

621379353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29589503.

The product of its digits is 102060, while the sum is 39.

The square root of 621379353 is about 24927.4818824525. The cubic root of 621379353 is about 853.3337831452. Note that the first 3 decimals are identical.

The spelling of 621379353 in words is "six hundred twenty-one million, three hundred seventy-nine thousand, three hundred fifty-three".