11498665 has 4 divisors (see below), whose sum is σ = 13798404. Its totient is φ = 9198928.

The previous prime is 11498659. The next prime is 11498699. The reversal of 11498665 is 56689411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56689411 = 23 ⋅2464757.

It can be written as a sum of positive squares in 2 ways, for example, as 3613801 + 7884864 = 1901^2 + 2808^2 .

It is a cyclic number.

It is not a de Polignac number, because 11498665 - 2³ = 11498657 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1149862 + ... + 1149871.

It is an arithmetic number, because the mean of its divisors is an integer number (3449601).

Almost surely, 2^11498665 is an apocalyptic number.

It is an amenable number.

11498665 is a deficient number, since it is larger than the sum of its proper divisors (2299739).

11498665 is an equidigital number, since it uses as much as digits as its factorization.

11498665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299738.

The product of its digits is 51840, while the sum is 40.

The square root of 11498665 is about 3390.9681508383. The cubic root of 11498665 is about 225.7091371354.

The spelling of 11498665 in words is "eleven million, four hundred ninety-eight thousand, six hundred sixty-five".