11170399 has 4 divisors (see below), whose sum is σ = 11213136. Its totient is φ = 11127664.

The previous prime is 11170361. The next prime is 11170403. The reversal of 11170399 is 99307111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99307111 = 3191 ⋅31121.

It is a cyclic number.

It is not a de Polignac number, because 11170399 - 2⁹ = 11169887 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11170399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11170339) 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, 20974 + ... + 21499.

It is an arithmetic number, because the mean of its divisors is an integer number (2803284).

Almost surely, 2^11170399 is an apocalyptic number.

11170399 is a deficient number, since it is larger than the sum of its proper divisors (42737).

11170399 is an equidigital number, since it uses as much as digits as its factorization.

11170399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42736.

The product of its (nonzero) digits is 1701, while the sum is 31.

The square root of 11170399 is about 3342.2146849058. The cubic root of 11170399 is about 223.5405055151.

The spelling of 11170399 in words is "eleven million, one hundred seventy thousand, three hundred ninety-nine".