11997493 has 8 divisors (see below), whose sum is σ = 12790400. Its totient is φ = 11220768.

The previous prime is 11997481. The next prime is 11997523. The reversal of 11997493 is 39479911.

It is a happy number.

11997493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11997493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11997443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2496 + ... + 5497.

It is an arithmetic number, because the mean of its divisors is an integer number (1598800).

Almost surely, 2^11997493 is an apocalyptic number.

It is an amenable number.

11997493 is a deficient number, since it is larger than the sum of its proper divisors (792907).

11997493 is an equidigital number, since it uses as much as digits as its factorization.

11997493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8091.

The product of its digits is 61236, while the sum is 43.

The square root of 11997493 is about 3463.7397419552. The cubic root of 11997493 is about 228.9269040747.

The spelling of 11997493 in words is "eleven million, nine hundred ninety-seven thousand, four hundred ninety-three".