874839 has 8 divisors (see below), whose sum is σ = 1333120. Its totient is φ = 499896.

The previous prime is 874831. The next prime is 874847. The reversal of 874839 is 938478.

It is an interprime number because it is at equal distance from previous prime (874831) and next prime (874847).

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

It is not a de Polignac number, because 874839 - 2³ = 874831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 874797 and 874806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874831) 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, 20809 + ... + 20850.

It is an arithmetic number, because the mean of its divisors is an integer number (166640).

2⁸⁷⁴⁸³⁹ is an apocalyptic number.

874839 is a deficient number, since it is larger than the sum of its proper divisors (458281).

874839 is a wasteful number, since it uses less digits than its factorization.

874839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41669.

The product of its digits is 48384, while the sum is 39.

The square root of 874839 is about 935.3282846146. The cubic root of 874839 is about 95.6406924565.

It can be divided in two parts, 8 and 74839, that added together give a palindrome (74847).

The spelling of 874839 in words is "eight hundred seventy-four thousand, eight hundred thirty-nine".