127666723 has 2 divisors, whose sum is σ = 127666724. Its totient is φ = 127666722.

The previous prime is 127666703. The next prime is 127666751. The reversal of 127666723 is 327666721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127666723 - 2⁹ = 127666211 is a prime.

It is not a weakly prime, because it can be changed into another prime (127666703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63833361 + 63833362.

It is an arithmetic number, because the mean of its divisors is an integer number (63833362).

Almost surely, 2^127666723 is an apocalyptic number.

127666723 is a deficient number, since it is larger than the sum of its proper divisors (1).

127666723 is an equidigital number, since it uses as much as digits as its factorization.

127666723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 40.

The square root of 127666723 is about 11298.9699973051. The cubic root of 127666723 is about 503.5306411318.

The spelling of 127666723 in words is "one hundred twenty-seven million, six hundred sixty-six thousand, seven hundred twenty-three".