1702989 has 24 divisors (see below), whose sum is σ = 2708160. Its totient is φ = 1026432.

The previous prime is 1702969. The next prime is 1702991. The reversal of 1702989 is 9892071.

It is a happy number.

It is not a de Polignac number, because 1702989 - 2¹⁹ = 1178701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1702949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3717 + ... + 4149.

It is an arithmetic number, because the mean of its divisors is an integer number (112840).

2^1702989 is an apocalyptic number.

1702989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1702989 is a deficient number, since it is larger than the sum of its proper divisors (1005171).

1702989 is a wasteful number, since it uses less digits than its factorization.

1702989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1702989 is about 1304.9862068237. The cubic root of 1702989 is about 119.4182257137.

Adding to 1702989 its sum of digits (36), we get a square (1703025 = 1305²).

The spelling of 1702989 in words is "one million, seven hundred two thousand, nine hundred eighty-nine".