11503873 has 8 divisors (see below), whose sum is σ = 12247200. Its totient is φ = 10774368.

The previous prime is 11503871. The next prime is 11503889. The reversal of 11503873 is 37830511.

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

It is not a de Polignac number, because 11503873 - 2¹ = 11503871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11503871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1711 + ... + 5092.

It is an arithmetic number, because the mean of its divisors is an integer number (1530900).

Almost surely, 2^11503873 is an apocalyptic number.

It is an amenable number.

11503873 is a deficient number, since it is larger than the sum of its proper divisors (743327).

11503873 is an equidigital number, since it uses as much as digits as its factorization.

11503873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6911.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 11503873 is about 3391.7359861876. The cubic root of 11503873 is about 225.7432082142.

The spelling of 11503873 in words is "eleven million, five hundred three thousand, eight hundred seventy-three".