127620697 has 2 divisors, whose sum is σ = 127620698. Its totient is φ = 127620696.

The previous prime is 127620667. The next prime is 127620781. The reversal of 127620697 is 796026721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89415936 + 38204761 = 9456^2 + 6181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127620697 is a prime.

It is not a weakly prime, because it can be changed into another prime (127620637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63810348 + 63810349.

It is an arithmetic number, because the mean of its divisors is an integer number (63810349).

Almost surely, 2^127620697 is an apocalyptic number.

It is an amenable number.

127620697 is a deficient number, since it is larger than the sum of its proper divisors (1).

127620697 is an equidigital number, since it uses as much as digits as its factorization.

127620697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 127620697 is about 11296.9330793804. The cubic root of 127620697 is about 503.4701234381.

The spelling of 127620697 in words is "one hundred twenty-seven million, six hundred twenty thousand, six hundred ninety-seven".