838845 has 24 divisors (see below), whose sum is σ = 1662336. Its totient is φ = 383328.

The previous prime is 838837. The next prime is 838853. The reversal of 838845 is 548838.

It is an interprime number because it is at equal distance from previous prime (838837) and next prime (838853).

It is not a de Polignac number, because 838845 - 2³ = 838837 is a prime.

838845 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 838845.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1017 + ... + 1646.

It is an arithmetic number, because the mean of its divisors is an integer number (69264).

2⁸³⁸⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

838845 is a deficient number, since it is larger than the sum of its proper divisors (823491).

838845 is a wasteful number, since it uses less digits than its factorization.

838845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681 (or 2678 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 838845 is about 915.8848180858. The cubic root of 838845 is about 94.3106142422.

The spelling of 838845 in words is "eight hundred thirty-eight thousand, eight hundred forty-five".