11809713 has 8 divisors (see below), whose sum is σ = 16672608. Its totient is φ = 7409984.

The previous prime is 11809711. The next prime is 11809717. The reversal of 11809713 is 31790811.

11809713 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 a cyclic number.

It is not a de Polignac number, because 11809713 - 2¹ = 11809711 is a prime.

It is a super-2 number, since 2×11809713² = 278938642284738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11809711) 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, 115731 + ... + 115832.

It is an arithmetic number, because the mean of its divisors is an integer number (2084076).

Almost surely, 2^11809713 is an apocalyptic number.

It is an amenable number.

11809713 is a deficient number, since it is larger than the sum of its proper divisors (4862895).

11809713 is a wasteful number, since it uses less digits than its factorization.

11809713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231583.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 11809713 is about 3436.5262984590. The cubic root of 11809713 is about 227.7262604269.

The spelling of 11809713 in words is "eleven million, eight hundred nine thousand, seven hundred thirteen".