269099989 has 2 divisors, whose sum is σ = 269099990. Its totient is φ = 269099988.

The previous prime is 269099981. The next prime is 269100031. The reversal of 269099989 is 989990962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250177489 + 18922500 = 15817^2 + 4350^2 .

It is a cyclic number.

It is not a de Polignac number, because 269099989 - 2³ = 269099981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (269099981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134549994 + 134549995.

It is an arithmetic number, because the mean of its divisors is an integer number (134549995).

Almost surely, 2^269099989 is an apocalyptic number.

It is an amenable number.

269099989 is a deficient number, since it is larger than the sum of its proper divisors (1).

269099989 is an equidigital number, since it uses as much as digits as its factorization.

269099989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5668704, while the sum is 61.

The square root of 269099989 is about 16404.2674021122. The cubic root of 269099989 is about 645.6114538963.

The spelling of 269099989 in words is "two hundred sixty-nine million, ninety-nine thousand, nine hundred eighty-nine".