1081839 has 8 divisors (see below), whose sum is σ = 1573632. Its totient is φ = 655640.

The previous prime is 1081823. The next prime is 1081853. The reversal of 1081839 is 9381801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1081839 - 2⁴ = 1081823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081859) 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, 16359 + ... + 16424.

It is an arithmetic number, because the mean of its divisors is an integer number (196704).

2^1081839 is an apocalyptic number.

1081839 is a deficient number, since it is larger than the sum of its proper divisors (491793).

1081839 is a wasteful number, since it uses less digits than its factorization.

1081839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32797.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1081839 is about 1040.1148974993. The cubic root of 1081839 is about 102.6567579594.

The spelling of 1081839 in words is "one million, eighty-one thousand, eight hundred thirty-nine".