127640627 has 2 divisors, whose sum is σ = 127640628. Its totient is φ = 127640626.

The previous prime is 127640603. The next prime is 127640677. The reversal of 127640627 is 726046721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127640627 - 2⁸ = 127640371 is a prime.

It is not a weakly prime, because it can be changed into another prime (127640677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63820313 + 63820314.

It is an arithmetic number, because the mean of its divisors is an integer number (63820314).

Almost surely, 2^127640627 is an apocalyptic number.

127640627 is a deficient number, since it is larger than the sum of its proper divisors (1).

127640627 is an equidigital number, since it uses as much as digits as its factorization.

127640627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 127640627 is about 11297.8151427610. The cubic root of 127640627 is about 503.4963303610.

The spelling of 127640627 in words is "one hundred twenty-seven million, six hundred forty thousand, six hundred twenty-seven".