127599947 has 2 divisors, whose sum is σ = 127599948. Its totient is φ = 127599946.

The previous prime is 127599917. The next prime is 127600001. The reversal of 127599947 is 749995721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127599947 - 2¹² = 127595851 is a prime.

It is not a weakly prime, because it can be changed into another prime (127599917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63799973 + 63799974.

It is an arithmetic number, because the mean of its divisors is an integer number (63799974).

Almost surely, 2^127599947 is an apocalyptic number.

127599947 is a deficient number, since it is larger than the sum of its proper divisors (1).

127599947 is an equidigital number, since it uses as much as digits as its factorization.

127599947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 53.

The square root of 127599947 is about 11296.0146511945. The cubic root of 127599947 is about 503.4428353583.

The spelling of 127599947 in words is "one hundred twenty-seven million, five hundred ninety-nine thousand, nine hundred forty-seven".