11797945 has 8 divisors (see below), whose sum is σ = 14200200. Its totient is φ = 9409920.

The previous prime is 11797937. The next prime is 11797957. The reversal of 11797945 is 54979711.

It can be written as a sum of positive squares in 4 ways, for example, as 3794704 + 8003241 = 1948^2 + 2829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11797945 - 2³ = 11797937 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1636 + ... + 5125.

It is an arithmetic number, because the mean of its divisors is an integer number (1775025).

Almost surely, 2^11797945 is an apocalyptic number.

It is an amenable number.

11797945 is a deficient number, since it is larger than the sum of its proper divisors (2402255).

11797945 is an equidigital number, since it uses as much as digits as its factorization.

11797945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7115.

The product of its digits is 79380, while the sum is 43.

The square root of 11797945 is about 3434.8136776250. The cubic root of 11797945 is about 227.6505946518.

The spelling of 11797945 in words is "eleven million, seven hundred ninety-seven thousand, nine hundred forty-five".