1606743 has 8 divisors (see below), whose sum is σ = 2380400. Its totient is φ = 1071144.

The previous prime is 1606741. The next prime is 1606751. The reversal of 1606743 is 3476061.

It is not a de Polignac number, because 1606743 - 2¹ = 1606741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 59509 = 1606743 / (1 + 6 + 0 + 6 + 7 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29728 + ... + 29781.

It is an arithmetic number, because the mean of its divisors is an integer number (297550).

2^1606743 is an apocalyptic number.

1606743 is a deficient number, since it is larger than the sum of its proper divisors (773657).

1606743 is an equidigital number, since it uses as much as digits as its factorization.

1606743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59518 (or 59512 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 1606743 is about 1267.5736664983. The cubic root of 1606743 is about 117.1247846826.

It can be divided in two parts, 16067 and 43, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 1606743 in words is "one million, six hundred six thousand, seven hundred forty-three".