127377797 has 2 divisors, whose sum is σ = 127377798. Its totient is φ = 127377796.

The previous prime is 127377769. The next prime is 127377839. The reversal of 127377797 is 797773721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78251716 + 49126081 = 8846^2 + 7009^2 .

It is an emirp because it is prime and its reverse (797773721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127377797 - 2¹⁴ = 127361413 is a prime.

It is a super-5 number, since 5×127377797⁵ (a number of 42 digits) contains 55555 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127377707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63688898 + 63688899.

It is an arithmetic number, because the mean of its divisors is an integer number (63688899).

Almost surely, 2^127377797 is an apocalyptic number.

It is an amenable number.

127377797 is a deficient number, since it is larger than the sum of its proper divisors (1).

127377797 is an equidigital number, since it uses as much as digits as its factorization.

127377797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907578, while the sum is 50.

The square root of 127377797 is about 11286.1772536143. The cubic root of 127377797 is about 503.1505029676.

The spelling of 127377797 in words is "one hundred twenty-seven million, three hundred seventy-seven thousand, seven hundred ninety-seven".