1839973 has 6 divisors (see below), whose sum is σ = 1898214. Its totient is φ = 1782216.

The previous prime is 1839967. The next prime is 1839983. The reversal of 1839973 is 3799381.

It can be written as a sum of positive squares in only one way, i.e., 1790244 + 49729 = 1338^2 + 223^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1839973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1839913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8140 + ... + 8362.

It is an arithmetic number, because the mean of its divisors is an integer number (316369).

2^1839973 is an apocalyptic number.

It is an amenable number.

1839973 is a deficient number, since it is larger than the sum of its proper divisors (58241).

1839973 is an frugal number, since it uses more digits than its factorization.

1839973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 260 counting only the distinct ones).

The product of its digits is 40824, while the sum is 40.

The square root of 1839973 is about 1356.4560442565. The cubic root of 1839973 is about 122.5379141285.

The spelling of 1839973 in words is "one million, eight hundred thirty-nine thousand, nine hundred seventy-three".