11297889 has 6 divisors (see below), whose sum is σ = 16319186. Its totient is φ = 7531920.

The previous prime is 11297879. The next prime is 11297893. The reversal of 11297889 is 98879211.

It can be written as a sum of positive squares in only one way, i.e., 10131489 + 1166400 = 3183^2 + 1080^2 .

It is not a de Polignac number, because 11297889 - 2⁴ = 11297873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11297879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 627652 + ... + 627669.

Almost surely, 2^11297889 is an apocalyptic number.

It is an amenable number.

11297889 is a deficient number, since it is larger than the sum of its proper divisors (5021297).

11297889 is a wasteful number, since it uses less digits than its factorization.

11297889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255327 (or 1255324 counting only the distinct ones).

The product of its digits is 72576, while the sum is 45.

The square root of 11297889 is about 3361.2332558155. The cubic root of 11297889 is about 224.3877279838.

The spelling of 11297889 in words is "eleven million, two hundred ninety-seven thousand, eight hundred eighty-nine".