621272773 has 16 divisors (see below), whose sum is σ = 725529600. Its totient is φ = 525988080.

The previous prime is 621272741. The next prime is 621272779. The reversal of 621272773 is 377272126.

It is a cyclic number.

It is not a de Polignac number, because 621272773 - 2⁵ = 621272741 is a prime.

It is a super-2 number, since 2×621272773² = 771959716942219058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621272779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12861 + ... + 37522.

It is an arithmetic number, because the mean of its divisors is an integer number (45345600).

Almost surely, 2^621272773 is an apocalyptic number.

It is an amenable number.

621272773 is a deficient number, since it is larger than the sum of its proper divisors (104256827).

621272773 is a wasteful number, since it uses less digits than its factorization.

621272773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50472.

The product of its digits is 49392, while the sum is 37.

The square root of 621272773 is about 24925.3439896022. The cubic root of 621272773 is about 853.2849919548.

The spelling of 621272773 in words is "six hundred twenty-one million, two hundred seventy-two thousand, seven hundred seventy-three".