11947236 has 48 divisors (see below), whose sum is σ = 32645760. Its totient is φ = 3329280.

The previous prime is 11947213. The next prime is 11947283. The reversal of 11947236 is 63274911.

11947236 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 junction number, because it is equal to n+sod(n) for n = 11947197 and 11947206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1710 + ... + 5178.

It is an arithmetic number, because the mean of its divisors is an integer number (680120).

Almost surely, 2^11947236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11947236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16322880).

11947236 is an abundant number, since it is smaller than the sum of its proper divisors (20698524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11947236 is a wasteful number, since it uses less digits than its factorization.

11947236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3524 (or 3522 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 11947236 is about 3456.4773975827. The cubic root of 11947236 is about 228.6068015939.

The spelling of 11947236 in words is "eleven million, nine hundred forty-seven thousand, two hundred thirty-six".