11872317 has 4 divisors (see below), whose sum is σ = 15829760. Its totient is φ = 7914876.

The previous prime is 11872303. The next prime is 11872351. The reversal of 11872317 is 71327811.

11872317 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11872317 - 2¹⁴ = 11855933 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 (11872387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1978717 + ... + 1978722.

It is an arithmetic number, because the mean of its divisors is an integer number (3957440).

Almost surely, 2^11872317 is an apocalyptic number.

It is an amenable number.

11872317 is a deficient number, since it is larger than the sum of its proper divisors (3957443).

11872317 is an equidigital number, since it uses as much as digits as its factorization.

11872317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3957442.

The product of its digits is 2352, while the sum is 30.

The square root of 11872317 is about 3445.6228754755. The cubic root of 11872317 is about 228.1279483450.

The spelling of 11872317 in words is "eleven million, eight hundred seventy-two thousand, three hundred seventeen".