11897397 has 12 divisors (see below), whose sum is σ = 17739904. Its totient is φ = 7675560.

The previous prime is 11897393. The next prime is 11897407. The reversal of 11897397 is 79379811.

11897397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11897397 - 2² = 11897393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11897393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21043 + ... + 21600.

Almost surely, 2^11897397 is an apocalyptic number.

It is an amenable number.

11897397 is a deficient number, since it is larger than the sum of its proper divisors (5842507).

11897397 is a wasteful number, since it uses less digits than its factorization.

11897397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42680 (or 42677 counting only the distinct ones).

The product of its digits is 95256, while the sum is 45.

The square root of 11897397 is about 3449.2603554965. The cubic root of 11897397 is about 228.2884737323.

The spelling of 11897397 in words is "eleven million, eight hundred ninety-seven thousand, three hundred ninety-seven".