11397199 has 4 divisors (see below), whose sum is σ = 12433320. Its totient is φ = 10361080.

The previous prime is 11397163. The next prime is 11397223. The reversal of 11397199 is 99179311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11397199 - 2¹⁷ = 11266127 is a prime.

It is a super-2 number, since 2×11397199² = 259792290091202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11397499) 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, 518044 + ... + 518065.

It is an arithmetic number, because the mean of its divisors is an integer number (3108330).

Almost surely, 2^11397199 is an apocalyptic number.

11397199 is a deficient number, since it is larger than the sum of its proper divisors (1036121).

11397199 is a wasteful number, since it uses less digits than its factorization.

11397199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036120.

The product of its digits is 15309, while the sum is 40.

The square root of 11397199 is about 3375.9737854432. The cubic root of 11397199 is about 225.0432772721.

It can be divided in two parts, 1139 and 7199, that added together give a palindrome (8338).

The spelling of 11397199 in words is "eleven million, three hundred ninety-seven thousand, one hundred ninety-nine".