11723091 has 8 divisors (see below), whose sum is σ = 15648000. Its totient is φ = 7806792.

The previous prime is 11723087. The next prime is 11723093. The reversal of 11723091 is 19032711.

11723091 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 sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11723091 - 2² = 11723087 is a prime.

It is a super-3 number, since 3×11723091³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11723093) 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, 2410 + ... + 5408.

It is an arithmetic number, because the mean of its divisors is an integer number (1956000).

Almost surely, 2^11723091 is an apocalyptic number.

11723091 is a deficient number, since it is larger than the sum of its proper divisors (3924909).

11723091 is a wasteful number, since it uses less digits than its factorization.

11723091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4305.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 11723091 is about 3423.8999693332. The cubic root of 11723091 is about 227.1681172922.

The spelling of 11723091 in words is "eleven million, seven hundred twenty-three thousand, ninety-one".