1164399 has 4 divisors (see below), whose sum is σ = 1552536. Its totient is φ = 776264.

The previous prime is 1164367. The next prime is 1164409. The reversal of 1164399 is 9934611.

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 1164399 - 2⁵ = 1164367 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194064 + ... + 194069.

It is an arithmetic number, because the mean of its divisors is an integer number (388134).

2^1164399 is an apocalyptic number.

1164399 is a deficient number, since it is larger than the sum of its proper divisors (388137).

1164399 is an equidigital number, since it uses as much as digits as its factorization.

1164399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388136.

The product of its digits is 5832, while the sum is 33.

The square root of 1164399 is about 1079.0732134568. The cubic root of 1164399 is about 105.2044090641.

The spelling of 1164399 in words is "one million, one hundred sixty-four thousand, three hundred ninety-nine".