1489823 has 4 divisors (see below), whose sum is σ = 1505280. Its totient is φ = 1474368.

The previous prime is 1489819. The next prime is 1489841. The reversal of 1489823 is 3289841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3289841 = 179 ⋅18379.

It is a cyclic number.

It is not a de Polignac number, because 1489823 - 2² = 1489819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1489223) 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, 7583 + ... + 7776.

It is an arithmetic number, because the mean of its divisors is an integer number (376320).

2^1489823 is an apocalyptic number.

1489823 is a deficient number, since it is larger than the sum of its proper divisors (15457).

1489823 is an equidigital number, since it uses as much as digits as its factorization.

1489823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15456.

The product of its digits is 13824, while the sum is 35.

The square root of 1489823 is about 1220.5830573951. The cubic root of 1489823 is about 114.2119530736.

The spelling of 1489823 in words is "one million, four hundred eighty-nine thousand, eight hundred twenty-three".