11213917 has 12 divisors (see below), whose sum is σ = 13276060. Its totient is φ = 9408960.

The previous prime is 11213843. The next prime is 11213957. The reversal of 11213917 is 71931211.

11213917 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4186116 + 7027801 = 2046^2 + 2651^2 .

It is not a de Polignac number, because 11213917 - 2¹¹ = 11211869 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11213891 and 11213900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1992 + ... + 5137.

Almost surely, 2^11213917 is an apocalyptic number.

It is an amenable number.

11213917 is a deficient number, since it is larger than the sum of its proper divisors (2062143).

11213917 is a wasteful number, since it uses less digits than its factorization.

11213917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164 (or 7153 counting only the distinct ones).

The product of its digits is 378, while the sum is 25.

The square root of 11213917 is about 3348.7187101935. The cubic root of 11213917 is about 223.8304214515.

The spelling of 11213917 in words is "eleven million, two hundred thirteen thousand, nine hundred seventeen".