838985 has 8 divisors (see below), whose sum is σ = 1150656. Its totient is φ = 575280.

The previous prime is 838969. The next prime is 838991. The reversal of 838985 is 589838.

838985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 838985 - 2⁴ = 838969 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11951 + ... + 12020.

It is an arithmetic number, because the mean of its divisors is an integer number (143832).

2⁸³⁸⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

838985 is a deficient number, since it is larger than the sum of its proper divisors (311671).

838985 is a wasteful number, since it uses less digits than its factorization.

838985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23983.

The product of its digits is 69120, while the sum is 41.

The square root of 838985 is about 915.9612437216. The cubic root of 838985 is about 94.3158606431.

The spelling of 838985 in words is "eight hundred thirty-eight thousand, nine hundred eighty-five".