1464889 has 4 divisors (see below), whose sum is σ = 1500660. Its totient is φ = 1429120.

The previous prime is 1464863. The next prime is 1464899. The reversal of 1464889 is 9884641.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36864 + 1428025 = 192^2 + 1195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1464889 is a prime.

It is an Ulam number.

It is a Duffinian number.

1464889 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1464809) 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, 17824 + ... + 17905.

It is an arithmetic number, because the mean of its divisors is an integer number (375165).

2^1464889 is an apocalyptic number.

It is an amenable number.

1464889 is a deficient number, since it is larger than the sum of its proper divisors (35771).

1464889 is an equidigital number, since it uses as much as digits as its factorization.

1464889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35770.

The product of its digits is 55296, while the sum is 40.

The square root of 1464889 is about 1210.3259891451. The cubic root of 1464889 is about 113.5712064580.

The spelling of 1464889 in words is "one million, four hundred sixty-four thousand, eight hundred eighty-nine".