269625857 has 2 divisors, whose sum is σ = 269625858. Its totient is φ = 269625856.

The previous prime is 269625841. The next prime is 269625859. The reversal of 269625857 is 758526962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145057936 + 124567921 = 12044^2 + 11161^2 .

It is a cyclic number.

It is not a de Polignac number, because 269625857 - 2⁴ = 269625841 is a prime.

Together with 269625859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (269625859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134812928 + 134812929.

It is an arithmetic number, because the mean of its divisors is an integer number (134812929).

Almost surely, 2^269625857 is an apocalyptic number.

It is an amenable number.

269625857 is a deficient number, since it is larger than the sum of its proper divisors (1).

269625857 is an equidigital number, since it uses as much as digits as its factorization.

269625857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 50.

The square root of 269625857 is about 16420.2879694602. The cubic root of 269625857 is about 646.0317257980.

The spelling of 269625857 in words is "two hundred sixty-nine million, six hundred twenty-five thousand, eight hundred fifty-seven".