1748989 has 16 divisors (see below), whose sum is σ = 2064384. Its totient is φ = 1465200.

The previous prime is 1748963. The next prime is 1748993. The reversal of 1748989 is 9898471.

It is a happy number.

It is not a de Polignac number, because 1748989 - 2⁹ = 1748477 is a prime.

It is a Duffinian number.

Its product of digits (145152) is a multiple of the sum of its prime divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1748959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7732 + ... + 7954.

It is an arithmetic number, because the mean of its divisors is an integer number (129024).

2^1748989 is an apocalyptic number.

It is an amenable number.

1748989 is a deficient number, since it is larger than the sum of its proper divisors (315395).

1748989 is a wasteful number, since it uses less digits than its factorization.

1748989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288.

The product of its digits is 145152, while the sum is 46.

The square root of 1748989 is about 1322.4934782448. The cubic root of 1748989 is about 120.4839025115.

It can be divided in two parts, 17489 and 89, that added together give a triangular number (17578 = T₁₈₇).

The spelling of 1748989 in words is "one million, seven hundred forty-eight thousand, nine hundred eighty-nine".