11431697 has 4 divisors (see below), whose sum is σ = 11441136. Its totient is φ = 11422260.

The previous prime is 11431657. The next prime is 11431709. The reversal of 11431697 is 79613411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11431697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11431627) 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 in 3 ways as a sum of consecutive naturals, for example, 2579 + ... + 5432.

It is an arithmetic number, because the mean of its divisors is an integer number (2860284).

Almost surely, 2^11431697 is an apocalyptic number.

It is an amenable number.

11431697 is a deficient number, since it is larger than the sum of its proper divisors (9439).

11431697 is an equidigital number, since it uses as much as digits as its factorization.

11431697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9438.

The product of its digits is 4536, while the sum is 32.

The square root of 11431697 is about 3381.0792655600. The cubic root of 11431697 is about 225.2701085315.

The spelling of 11431697 in words is "eleven million, four hundred thirty-one thousand, six hundred ninety-seven".