627398239 has 4 divisors (see below), whose sum is σ = 675659656. Its totient is φ = 579136824.

The previous prime is 627398227. The next prime is 627398249. The reversal of 627398239 is 932893726.

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 627398239 - 2⁵ = 627398207 is a prime.

It is a super-2 number, since 2×627398239² = 787257100600602242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 627398192 and 627398201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (627398249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24130689 + ... + 24130714.

It is an arithmetic number, because the mean of its divisors is an integer number (168914914).

Almost surely, 2^627398239 is an apocalyptic number.

627398239 is a deficient number, since it is larger than the sum of its proper divisors (48261417).

627398239 is a wasteful number, since it uses less digits than its factorization.

627398239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48261416.

The product of its digits is 979776, while the sum is 49.

The square root of 627398239 is about 25047.9188556654. The cubic root of 627398239 is about 856.0801591564.

The spelling of 627398239 in words is "six hundred twenty-seven million, three hundred ninety-eight thousand, two hundred thirty-nine".