11701813 has 4 divisors (see below), whose sum is σ = 11893708. Its totient is φ = 11509920.

The previous prime is 11701801. The next prime is 11701847. The reversal of 11701813 is 31810711.

11701813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31810711 = 41 ⋅775871.

It can be written as a sum of positive squares in 2 ways, for example, as 4422609 + 7279204 = 2103^2 + 2698^2 .

It is a cyclic number.

It is not a de Polignac number, because 11701813 - 2⁹ = 11701301 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 (11701513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95856 + ... + 95977.

It is an arithmetic number, because the mean of its divisors is an integer number (2973427).

Almost surely, 2^11701813 is an apocalyptic number.

It is an amenable number.

11701813 is a deficient number, since it is larger than the sum of its proper divisors (191895).

11701813 is an equidigital number, since it uses as much as digits as its factorization.

11701813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191894.

The product of its (nonzero) digits is 168, while the sum is 22.

The square root of 11701813 is about 3420.7912827298. The cubic root of 11701813 is about 227.0305935336.

The spelling of 11701813 in words is "eleven million, seven hundred one thousand, eight hundred thirteen".