1806093 has 12 divisors (see below), whose sum is σ = 2645500. Its totient is φ = 1187136.

The previous prime is 1806089. The next prime is 1806107. The reversal of 1806093 is 3906081.

It can be written as a sum of positive squares in 2 ways, for example, as 580644 + 1225449 = 762^2 + 1107^2 .

It is not a de Polignac number, because 1806093 - 2² = 1806089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 718 + ... + 2031.

2^1806093 is an apocalyptic number.

It is an amenable number.

1806093 is a deficient number, since it is larger than the sum of its proper divisors (839407).

1806093 is a wasteful number, since it uses less digits than its factorization.

1806093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828 (or 2825 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1806093 is about 1343.9095951737. The cubic root of 1806093 is about 121.7811403577.

The spelling of 1806093 in words is "one million, eight hundred six thousand, ninety-three".