11691412 has 6 divisors (see below), whose sum is σ = 20459978. Its totient is φ = 5845704.

The previous prime is 11691397. The next prime is 11691413. The reversal of 11691412 is 21419611.

It can be written as a sum of positive squares in only one way, i.e., 10995856 + 695556 = 3316^2 + 834^2 .

It is a super-2 number, since 2×11691412² = 273378229107488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11691413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1461423 + ... + 1461430.

Almost surely, 2^11691412 is an apocalyptic number.

It is an amenable number.

11691412 is a deficient number, since it is larger than the sum of its proper divisors (8768566).

11691412 is a wasteful number, since it uses less digits than its factorization.

11691412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922857 (or 2922855 counting only the distinct ones).

The product of its digits is 432, while the sum is 25.

The square root of 11691412 is about 3419.2706824702. The cubic root of 11691412 is about 226.9633092257.

The spelling of 11691412 in words is "eleven million, six hundred ninety-one thousand, four hundred twelve".