12031697 has 4 divisors (see below), whose sum is σ = 12356916. Its totient is φ = 11706480.

The previous prime is 12031687. The next prime is 12031703. The reversal of 12031697 is 79613021.

12031697 is nontrivially palindromic in base 13.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7054336 + 4977361 = 2656^2 + 2231^2 .

It is a cyclic number.

It is not a de Polignac number, because 12031697 - 2⁶ = 12031633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031667) 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, 162554 + ... + 162627.

It is an arithmetic number, because the mean of its divisors is an integer number (3089229).

Almost surely, 2^12031697 is an apocalyptic number.

It is an amenable number.

12031697 is a deficient number, since it is larger than the sum of its proper divisors (325219).

12031697 is an equidigital number, since it uses as much as digits as its factorization.

12031697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325218.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 12031697 is about 3468.6736658268. The cubic root of 12031697 is about 229.1442491056.

The spelling of 12031697 in words is "twelve million, thirty-one thousand, six hundred ninety-seven".