11317918 has 4 divisors (see below), whose sum is σ = 16976880. Its totient is φ = 5658958.

The previous prime is 11317877. The next prime is 11317921. The reversal of 11317918 is 81971311.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11317918.

It is a congruent 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 as a sum of consecutive naturals, namely, 2829478 + ... + 2829481.

It is an arithmetic number, because the mean of its divisors is an integer number (4244220).

Almost surely, 2^11317918 is an apocalyptic number.

11317918 is a deficient number, since it is larger than the sum of its proper divisors (5658962).

11317918 is an equidigital number, since it uses as much as digits as its factorization.

11317918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5658961.

The product of its digits is 1512, while the sum is 31.

The square root of 11317918 is about 3364.2113488900. The cubic root of 11317918 is about 224.5202485692.

The spelling of 11317918 in words is "eleven million, three hundred seventeen thousand, nine hundred eighteen".