1489645 has 8 divisors (see below), whose sum is σ = 1796760. Its totient is φ = 1185600.

The previous prime is 1489637. The next prime is 1489661. The reversal of 1489645 is 5469841.

It is a happy number.

1489645 is nontrivially palindromic in base 8.

It can be written as a sum of positive squares in 4 ways, for example, as 64009 + 1425636 = 253^2 + 1194^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1489645 - 2³ = 1489637 is a prime.

It is a super-3 number, since 3×1489645³ = 9916755470361033375, which contains 333 as substring.

1489645 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495 + ... + 1795.

It is an arithmetic number, because the mean of its divisors is an integer number (224595).

2^1489645 is an apocalyptic number.

It is an amenable number.

1489645 is a deficient number, since it is larger than the sum of its proper divisors (307115).

1489645 is a wasteful number, since it uses less digits than its factorization.

1489645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535.

The product of its digits is 34560, while the sum is 37.

The square root of 1489645 is about 1220.5101392451. The cubic root of 1489645 is about 114.2074043146.

It can be divided in two parts, 14896 and 45, that added together give a palindrome (14941).

The spelling of 1489645 in words is "one million, four hundred eighty-nine thousand, six hundred forty-five".