269888869 has 2 divisors, whose sum is σ = 269888870. Its totient is φ = 269888868.

The previous prime is 269888849. The next prime is 269888881. The reversal of 269888869 is 968888962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265266369 + 4622500 = 16287^2 + 2150^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-269888869 is a prime.

It is a super-2 number, since 2×269888869² = 145680003220198322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 269888869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (269888849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134944434 + 134944435.

It is an arithmetic number, because the mean of its divisors is an integer number (134944435).

Almost surely, 2^269888869 is an apocalyptic number.

It is an amenable number.

269888869 is a deficient number, since it is larger than the sum of its proper divisors (1).

269888869 is an equidigital number, since it uses as much as digits as its factorization.

269888869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23887872, while the sum is 64.

The square root of 269888869 is about 16428.2947684780. The cubic root of 269888869 is about 646.2417191067.

The spelling of 269888869 in words is "two hundred sixty-nine million, eight hundred eighty-eight thousand, eight hundred sixty-nine".