621714051 has 12 divisors (see below), whose sum is σ = 1026321712. Its totient is φ = 355265136.

The previous prime is 621714047. The next prime is 621714101. The reversal of 621714051 is 150417126.

It is a happy number.

It is not a de Polignac number, because 621714051 - 2² = 621714047 is a prime.

It is a super-2 number, since 2×621714051² = 773056722421661202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (621714011) 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 11 ways as a sum of consecutive naturals, for example, 4934176 + ... + 4934301.

Almost surely, 2^621714051 is an apocalyptic number.

621714051 is a deficient number, since it is larger than the sum of its proper divisors (404607661).

621714051 is a wasteful number, since it uses less digits than its factorization.

621714051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9868490 (or 9868487 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 621714051 is about 24934.1944124931. The cubic root of 621714051 is about 853.4869680688.

The spelling of 621714051 in words is "six hundred twenty-one million, seven hundred fourteen thousand, fifty-one".