621362723 has 4 divisors (see below), whose sum is σ = 622367160. Its totient is φ = 620358288.

The previous prime is 621362713. The next prime is 621362773. The reversal of 621362723 is 327263126.

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

It is a cyclic number.

It is not a de Polignac number, because 621362723 - 2⁶ = 621362659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 621362723.

It is not an unprimeable number, because it can be changed into a prime (621362713) 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 3 ways as a sum of consecutive naturals, for example, 501290 + ... + 502527.

It is an arithmetic number, because the mean of its divisors is an integer number (155591790).

Almost surely, 2^621362723 is an apocalyptic number.

621362723 is a deficient number, since it is larger than the sum of its proper divisors (1004437).

621362723 is a wasteful number, since it uses less digits than its factorization.

621362723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004436.

The product of its digits is 18144, while the sum is 32.

The square root of 621362723 is about 24927.1483126330. The cubic root of 621362723 is about 853.3261704755.

The spelling of 621362723 in words is "six hundred twenty-one million, three hundred sixty-two thousand, seven hundred twenty-three".