626272643 has 4 divisors (see below), whose sum is σ = 632729160. Its totient is φ = 619816128.

The previous prime is 626272627. The next prime is 626272657. The reversal of 626272643 is 346272626.

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 626272643 - 2⁴ = 626272627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 626272597 and 626272606.

It is not an unprimeable number, because it can be changed into a prime (626272613) 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, 3228113 + ... + 3228306.

It is an arithmetic number, because the mean of its divisors is an integer number (158182290).

Almost surely, 2^626272643 is an apocalyptic number.

626272643 is a deficient number, since it is larger than the sum of its proper divisors (6456517).

626272643 is an equidigital number, since it uses as much as digits as its factorization.

626272643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6456516.

The product of its digits is 145152, while the sum is 38.

The square root of 626272643 is about 25025.4399162133. The cubic root of 626272643 is about 855.5678969422.

The spelling of 626272643 in words is "six hundred twenty-six million, two hundred seventy-two thousand, six hundred forty-three".