621397262 has 16 divisors (see below), whose sum is σ = 957422592. Its totient is φ = 302368440.

The previous prime is 621397241. The next prime is 621397289. The reversal of 621397262 is 262793126.

It is a super-2 number, since 2×621397262² = 772269114442193288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16814 + ... + 39057.

It is an arithmetic number, because the mean of its divisors is an integer number (59838912).

Almost surely, 2^621397262 is an apocalyptic number.

621397262 is a deficient number, since it is larger than the sum of its proper divisors (336025330).

621397262 is a wasteful number, since it uses less digits than its factorization.

621397262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56023.

The product of its digits is 54432, while the sum is 38.

The square root of 621397262 is about 24927.8411018684. The cubic root of 621397262 is about 853.3419811474.

The spelling of 621397262 in words is "six hundred twenty-one million, three hundred ninety-seven thousand, two hundred sixty-two".