12440697 has 8 divisors (see below), whose sum is σ = 16618656. Its totient is φ = 8278272.

The previous prime is 12440693. The next prime is 12440711. The reversal of 12440697 is 79604421.

It is a happy number.

12440697 is digitally balanced in base 3, 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 not a de Polignac number, because 12440697 - 2² = 12440693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12440693) 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, 1863 + ... + 5324.

It is an arithmetic number, because the mean of its divisors is an integer number (2077332).

Almost surely, 2^12440697 is an apocalyptic number.

It is an amenable number.

12440697 is a deficient number, since it is larger than the sum of its proper divisors (4177959).

12440697 is an equidigital number, since it uses as much as digits as its factorization.

12440697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7767.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 12440697 is about 3527.1372244357. The cubic root of 12440697 is about 231.7118462225.

The spelling of 12440697 in words is "twelve million, four hundred forty thousand, six hundred ninety-seven".