11897465 has 4 divisors (see below), whose sum is σ = 14276964. Its totient is φ = 9517968.

The previous prime is 11897449. The next prime is 11897471. The reversal of 11897465 is 56479811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56479811 = 2731 ⋅20681.

It can be written as a sum of positive squares in 2 ways, for example, as 6190144 + 5707321 = 2488^2 + 2389^2 .

It is a cyclic number.

It is not a de Polignac number, because 11897465 - 2⁴ = 11897449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1189742 + ... + 1189751.

It is an arithmetic number, because the mean of its divisors is an integer number (3569241).

Almost surely, 2^11897465 is an apocalyptic number.

It is an amenable number.

11897465 is a deficient number, since it is larger than the sum of its proper divisors (2379499).

11897465 is an equidigital number, since it uses as much as digits as its factorization.

11897465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2379498.

The product of its digits is 60480, while the sum is 41.

The square root of 11897465 is about 3449.2702126682. The cubic root of 11897465 is about 228.2889086618.

The spelling of 11897465 in words is "eleven million, eight hundred ninety-seven thousand, four hundred sixty-five".