1488889 has 4 divisors (see below), whose sum is σ = 1540260. Its totient is φ = 1437520.

The previous prime is 1488871. The next prime is 1488901. The reversal of 1488889 is 9888841.

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 1010025 + 478864 = 1005^2 + 692^2 .

It is a cyclic number.

It is not a de Polignac number, because 1488889 - 2⁵ = 1488857 is a prime.

It is a Duffinian number.

1488889 is a lucky number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1488869) 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, 25642 + ... + 25699.

It is an arithmetic number, because the mean of its divisors is an integer number (385065).

2^1488889 is an apocalyptic number.

It is an amenable number.

1488889 is a deficient number, since it is larger than the sum of its proper divisors (51371).

1488889 is an equidigital number, since it uses as much as digits as its factorization.

1488889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51370.

The product of its digits is 147456, while the sum is 46.

The square root of 1488889 is about 1220.2003933781. The cubic root of 1488889 is about 114.1880808275.

The spelling of 1488889 in words is "one million, four hundred eighty-eight thousand, eight hundred eighty-nine".