626486643 has 10 divisors (see below), whose sum is σ = 935862884. Its totient is φ = 417657708.

The previous prime is 626486629. The next prime is 626486687. The reversal of 626486643 is 346684626.

It is not a de Polignac number, because 626486643 - 2⁶ = 626486579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (626486143) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3867121 + ... + 3867282.

Almost surely, 2^626486643 is an apocalyptic number.

626486643 is a deficient number, since it is larger than the sum of its proper divisors (309376241).

626486643 is an equidigital number, since it uses as much as digits as its factorization.

626486643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734415 (or 7734406 counting only the distinct ones).

The product of its digits is 995328, while the sum is 45.

The square root of 626486643 is about 25029.7152001376. The cubic root of 626486643 is about 855.6653362293.

The spelling of 626486643 in words is "six hundred twenty-six million, four hundred eighty-six thousand, six hundred forty-three".