627479647 has 2 divisors, whose sum is σ = 627479648. Its totient is φ = 627479646.

The previous prime is 627479609. The next prime is 627479663. The reversal of 627479647 is 746974726.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-627479647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 627479594 and 627479603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (627479687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313739823 + 313739824.

It is an arithmetic number, because the mean of its divisors is an integer number (313739824).

Almost surely, 2^627479647 is an apocalyptic number.

627479647 is a deficient number, since it is larger than the sum of its proper divisors (1).

627479647 is an equidigital number, since it uses as much as digits as its factorization.

627479647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 52.

The square root of 627479647 is about 25049.5438481422. The cubic root of 627479647 is about 856.1171844221.

The spelling of 627479647 in words is "six hundred twenty-seven million, four hundred seventy-nine thousand, six hundred forty-seven".