127793849 has 2 divisors, whose sum is σ = 127793850. Its totient is φ = 127793848.

The previous prime is 127793837. The next prime is 127793863. The reversal of 127793849 is 948397721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82810000 + 44983849 = 9100^2 + 6707^2 .

It is a cyclic number.

It is not a de Polignac number, because 127793849 - 2⁴ = 127793833 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 127793797 and 127793806.

It is not a weakly prime, because it can be changed into another prime (127793899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63896924 + 63896925.

It is an arithmetic number, because the mean of its divisors is an integer number (63896925).

Almost surely, 2^127793849 is an apocalyptic number.

It is an amenable number.

127793849 is a deficient number, since it is larger than the sum of its proper divisors (1).

127793849 is an equidigital number, since it uses as much as digits as its factorization.

127793849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 50.

The square root of 127793849 is about 11304.5941545904. The cubic root of 127793849 is about 503.6977183456.

The spelling of 127793849 in words is "one hundred twenty-seven million, seven hundred ninety-three thousand, eight hundred forty-nine".