1797939 has 36 divisors (see below), whose sum is σ = 3098368. Its totient is φ = 997920.

The previous prime is 1797911. The next prime is 1797947. The reversal of 1797939 is 9397971.

It is not a de Polignac number, because 1797939 - 2¹¹ = 1795891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1797894 and 1797903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1797239) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14094 + ... + 14220.

2^1797939 is an apocalyptic number.

1797939 is a deficient number, since it is larger than the sum of its proper divisors (1300429).

1797939 is a wasteful number, since it uses less digits than its factorization.

1797939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 154 counting only the distinct ones).

The product of its digits is 107163, while the sum is 45.

The square root of 1797939 is about 1340.8724771581. The cubic root of 1797939 is about 121.5975947051.

It can be divided in two parts, 179 and 7939, that added together give a palindrome (8118).

The spelling of 1797939 in words is "one million, seven hundred ninety-seven thousand, nine hundred thirty-nine".