11721367 has 8 divisors (see below), whose sum is σ = 13722912. Its totient is φ = 9801600.

The previous prime is 11721349. The next prime is 11721371. The reversal of 11721367 is 76312711.

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 11721367 - 2⁷ = 11721239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11721397) 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, 20134 + ... + 20707.

It is an arithmetic number, because the mean of its divisors is an integer number (1715364).

Almost surely, 2^11721367 is an apocalyptic number.

11721367 is a deficient number, since it is larger than the sum of its proper divisors (2001545).

11721367 is an equidigital number, since it uses as much as digits as its factorization.

11721367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40889.

The product of its digits is 1764, while the sum is 28.

The square root of 11721367 is about 3423.6482003851. The cubic root of 11721367 is about 227.1569809508.

The spelling of 11721367 in words is "eleven million, seven hundred twenty-one thousand, three hundred sixty-seven".