870738 has 32 divisors (see below), whose sum is σ = 1935360. Its totient is φ = 258960.

The previous prime is 870731. The next prime is 870739. The reversal of 870738 is 837078.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 870699 and 870708.

It is not an unprimeable number, because it can be changed into a prime (870731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5131 + ... + 5297.

It is an arithmetic number, because the mean of its divisors is an integer number (60480).

2⁸⁷⁰⁷³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (967680).

870738 is an abundant number, since it is smaller than the sum of its proper divisors (1064622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

870738 is a wasteful number, since it uses less digits than its factorization.

870738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 870738 is about 933.1334309733. The cubic root of 870738 is about 95.4910127412.

The spelling of 870738 in words is "eight hundred seventy thousand, seven hundred thirty-eight".