1164489 has 4 divisors (see below), whose sum is σ = 1552656. Its totient is φ = 776324.

The previous prime is 1164479. The next prime is 1164497. The reversal of 1164489 is 9844611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1164489 - 2⁹ = 1163977 is a prime.

It is a super-2 number, since 2×1164489² = 2712069262242, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1164409) 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, 194079 + ... + 194084.

It is an arithmetic number, because the mean of its divisors is an integer number (388164).

2^1164489 is an apocalyptic number.

It is an amenable number.

1164489 is a deficient number, since it is larger than the sum of its proper divisors (388167).

1164489 is an equidigital number, since it uses as much as digits as its factorization.

1164489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388166.

The product of its digits is 6912, while the sum is 33.

The square root of 1164489 is about 1079.1149151040. The cubic root of 1164489 is about 105.2071195189.

It can be divided in two parts, 1164 and 489, that added together give a triangular number (1653 = T₅₇).

The spelling of 1164489 in words is "one million, one hundred sixty-four thousand, four hundred eighty-nine".