11946491 has 4 divisors (see below), whose sum is σ = 11954112. Its totient is φ = 11938872.

The previous prime is 11946479. The next prime is 11946511. The reversal of 11946491 is 19464911.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11946491 - 2¹⁰ = 11945467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11946401) 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, 500 + ... + 4913.

It is an arithmetic number, because the mean of its divisors is an integer number (2988528).

Almost surely, 2^11946491 is an apocalyptic number.

11946491 is a deficient number, since it is larger than the sum of its proper divisors (7621).

11946491 is an equidigital number, since it uses as much as digits as its factorization.

11946491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7620.

The product of its digits is 7776, while the sum is 35.

The square root of 11946491 is about 3456.3696272245. The cubic root of 11946491 is about 228.6020497108.

It can be divided in two parts, 11 and 946491, that multiplied together give a palindrome (10411401).

The spelling of 11946491 in words is "eleven million, nine hundred forty-six thousand, four hundred ninety-one".