11928969 has 12 divisors (see below), whose sum is σ = 18556356. Its totient is φ = 7340832.

The previous prime is 11928967. The next prime is 11928997. The reversal of 11928969 is 96982911.

It can be written as a sum of positive squares in 2 ways, for example, as 7767369 + 4161600 = 2787^2 + 2040^2 .

It is not a de Polignac number, because 11928969 - 2¹ = 11928967 is a prime.

It is a super-2 number, since 2×11928969² = 284600602805922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11928967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50862 + ... + 51095.

It is an arithmetic number, because the mean of its divisors is an integer number (1546363).

Almost surely, 2^11928969 is an apocalyptic number.

It is an amenable number.

11928969 is a deficient number, since it is larger than the sum of its proper divisors (6627387).

11928969 is a wasteful number, since it uses less digits than its factorization.

11928969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101976 (or 101973 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 11928969 is about 3453.8339566343. The cubic root of 11928969 is about 228.4902309616.

The spelling of 11928969 in words is "eleven million, nine hundred twenty-eight thousand, nine hundred sixty-nine".