11431873 has 4 divisors (see below), whose sum is σ = 11588548. Its totient is φ = 11275200.

The previous prime is 11431841. The next prime is 11431879. The reversal of 11431873 is 37813411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37813411 = 857 ⋅44123.

It can be written as a sum of positive squares in 2 ways, for example, as 9535744 + 1896129 = 3088^2 + 1377^2 .

It is a cyclic number.

It is not a de Polignac number, because 11431873 - 2⁵ = 11431841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11431879) 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, 78228 + ... + 78373.

It is an arithmetic number, because the mean of its divisors is an integer number (2897137).

Almost surely, 2^11431873 is an apocalyptic number.

It is an amenable number.

11431873 is a deficient number, since it is larger than the sum of its proper divisors (156675).

11431873 is an equidigital number, since it uses as much as digits as its factorization.

11431873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156674.

The product of its digits is 2016, while the sum is 28.

The square root of 11431873 is about 3381.1052926521. The cubic root of 11431873 is about 225.2712645960.

The spelling of 11431873 in words is "eleven million, four hundred thirty-one thousand, eight hundred seventy-three".