11726291 has 4 divisors (see below), whose sum is σ = 11818752. Its totient is φ = 11633832.

The previous prime is 11726263. The next prime is 11726293. The reversal of 11726291 is 19262711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19262711 = 13 ⋅1481747.

It is a cyclic number.

It is not a de Polignac number, because 11726291 - 2⁶ = 11726227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11726293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46040 + ... + 46293.

It is an arithmetic number, because the mean of its divisors is an integer number (2954688).

Almost surely, 2^11726291 is an apocalyptic number.

11726291 is a deficient number, since it is larger than the sum of its proper divisors (92461).

11726291 is an equidigital number, since it uses as much as digits as its factorization.

11726291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92460.

The product of its digits is 1512, while the sum is 29.

The square root of 11726291 is about 3424.3672408198. The cubic root of 11726291 is about 227.1887851020.

The spelling of 11726291 in words is "eleven million, seven hundred twenty-six thousand, two hundred ninety-one".