627656461 has 2 divisors, whose sum is σ = 627656462. Its totient is φ = 627656460.

The previous prime is 627656443. The next prime is 627656467. The reversal of 627656461 is 164656726.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 608559561 + 19096900 = 24669^2 + 4370^2 .

It is a cyclic number.

It is not a de Polignac number, because 627656461 - 2¹⁹ = 627132173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (627656467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313828230 + 313828231.

It is an arithmetic number, because the mean of its divisors is an integer number (313828231).

Almost surely, 2^627656461 is an apocalyptic number.

It is an amenable number.

627656461 is a deficient number, since it is larger than the sum of its proper divisors (1).

627656461 is an equidigital number, since it uses as much as digits as its factorization.

627656461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The square root of 627656461 is about 25053.0728853768. The cubic root of 627656461 is about 856.1975903702.

The spelling of 627656461 in words is "six hundred twenty-seven million, six hundred fifty-six thousand, four hundred sixty-one".