11506873 has 4 divisors (see below), whose sum is σ = 13150720. Its totient is φ = 9863028.

The previous prime is 11506861. The next prime is 11506897. The reversal of 11506873 is 37860511.

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 a de Polignac number, because none of the positive numbers 2^k-11506873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11506813) 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, 821913 + ... + 821926.

It is an arithmetic number, because the mean of its divisors is an integer number (3287680).

Almost surely, 2^11506873 is an apocalyptic number.

It is an amenable number.

11506873 is a deficient number, since it is larger than the sum of its proper divisors (1643847).

11506873 is an equidigital number, since it uses as much as digits as its factorization.

11506873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643846.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 11506873 is about 3392.1782087620. The cubic root of 11506873 is about 225.7628297441.

The spelling of 11506873 in words is "eleven million, five hundred six thousand, eight hundred seventy-three".