11831765 has 8 divisors (see below), whose sum is σ = 15488928. Its totient is φ = 8604880.

The previous prime is 11831761. The next prime is 11831803. The reversal of 11831765 is 56713811.

11831765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11831765 - 2² = 11831761 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 (11831761) 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, 107507 + ... + 107616.

It is an arithmetic number, because the mean of its divisors is an integer number (1936116).

Almost surely, 2^11831765 is an apocalyptic number.

It is an amenable number.

11831765 is a deficient number, since it is larger than the sum of its proper divisors (3657163).

11831765 is a wasteful number, since it uses less digits than its factorization.

11831765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215139.

The product of its digits is 5040, while the sum is 32.

The square root of 11831765 is about 3439.7332745432. The cubic root of 11831765 is about 227.8679149284.

The spelling of 11831765 in words is "eleven million, eight hundred thirty-one thousand, seven hundred sixty-five".