13268789 has 8 divisors (see below), whose sum is σ = 14392728. Its totient is φ = 12183040.

The previous prime is 13268777. The next prime is 13268791. The reversal of 13268789 is 98786231.

It can be written as a sum of positive squares in 4 ways, for example, as 128164 + 13140625 = 358^2 + 3625^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13268789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13268719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8822 + ... + 10215.

It is an arithmetic number, because the mean of its divisors is an integer number (1799091).

Almost surely, 2^13268789 is an apocalyptic number.

It is an amenable number.

13268789 is a deficient number, since it is larger than the sum of its proper divisors (1123939).

13268789 is a wasteful number, since it uses less digits than its factorization.

13268789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19095.

The product of its digits is 145152, while the sum is 44.

The square root of 13268789 is about 3642.6348979825. The cubic root of 13268789 is about 236.7429723753.

It can be divided in two parts, 132 and 68789, that added together give a cube (68921 = 41³).

The spelling of 13268789 in words is "thirteen million, two hundred sixty-eight thousand, seven hundred eighty-nine".