127690093 has 2 divisors, whose sum is σ = 127690094. Its totient is φ = 127690092.

The previous prime is 127690049. The next prime is 127690099. The reversal of 127690093 is 390096721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122367844 + 5322249 = 11062^2 + 2307^2 .

It is a cyclic number.

It is not a de Polignac number, because 127690093 - 2²¹ = 125592941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127690099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63845046 + 63845047.

It is an arithmetic number, because the mean of its divisors is an integer number (63845047).

Almost surely, 2^127690093 is an apocalyptic number.

It is an amenable number.

127690093 is a deficient number, since it is larger than the sum of its proper divisors (1).

127690093 is an equidigital number, since it uses as much as digits as its factorization.

127690093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 127690093 is about 11300.0041150435. The cubic root of 127690093 is about 503.5613638157.

The spelling of 127690093 in words is "one hundred twenty-seven million, six hundred ninety thousand, ninety-three".