621264343 has 4 divisors (see below), whose sum is σ = 710016400. Its totient is φ = 532512288.

The previous prime is 621264317. The next prime is 621264353. The reversal of 621264343 is 343462126.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 621264343 - 2⁵ = 621264311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621264353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44376018 + ... + 44376031.

It is an arithmetic number, because the mean of its divisors is an integer number (177504100).

Almost surely, 2^621264343 is an apocalyptic number.

621264343 is a deficient number, since it is larger than the sum of its proper divisors (88752057).

621264343 is an equidigital number, since it uses as much as digits as its factorization.

621264343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88752056.

The product of its digits is 20736, while the sum is 31.

The square root of 621264343 is about 24925.1748840404. The cubic root of 621264343 is about 853.2811325524.

The spelling of 621264343 in words is "six hundred twenty-one million, two hundred sixty-four thousand, three hundred forty-three".