1838979 has 6 divisors (see below), whose sum is σ = 2656316. Its totient is φ = 1225980.

The previous prime is 1838957. The next prime is 1838983. The reversal of 1838979 is 9798381.

It is not a de Polignac number, because 1838979 - 2¹¹ = 1836931 is a prime.

It is a Duffinian number.

1838979 is a lucky number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (1838909) 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, 102157 + ... + 102174.

2^1838979 is an apocalyptic number.

1838979 is a deficient number, since it is larger than the sum of its proper divisors (817337).

1838979 is a wasteful number, since it uses less digits than its factorization.

1838979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204337 (or 204334 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 1838979 is about 1356.0895988098. The cubic root of 1838979 is about 122.5158441258.

The spelling of 1838979 in words is "one million, eight hundred thirty-eight thousand, nine hundred seventy-nine".