11997914 has 4 divisors (see below), whose sum is σ = 17996874. Its totient is φ = 5998956.

The previous prime is 11997913. The next prime is 11997917. The reversal of 11997914 is 41979911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11730625 + 267289 = 3425^2 + 517^2 .

It is not an unprimeable number, because it can be changed into a prime (11997913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2999477 + ... + 2999480.

Almost surely, 2^11997914 is an apocalyptic number.

11997914 is a deficient number, since it is larger than the sum of its proper divisors (5998960).

11997914 is an equidigital number, since it uses as much as digits as its factorization.

11997914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5998959.

The product of its digits is 20412, while the sum is 41.

The square root of 11997914 is about 3463.8005138864. The cubic root of 11997914 is about 228.9295817757.

The spelling of 11997914 in words is "eleven million, nine hundred ninety-seven thousand, nine hundred fourteen".