870342 has 16 divisors (see below), whose sum is σ = 1899072. Its totient is φ = 263720.

The previous prime is 870341. The next prime is 870367. The reversal of 870342 is 243078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6528 + ... + 6659.

It is an arithmetic number, because the mean of its divisors is an integer number (118692).

2⁸⁷⁰³⁴² is an apocalyptic number.

870342 is an abundant number, since it is smaller than the sum of its proper divisors (1028730).

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

870342 is a wasteful number, since it uses less digits than its factorization.

870342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13203.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 870342 is about 932.9212185388. The cubic root of 870342 is about 95.4765345342.

Subtracting from 870342 its reverse (243078), we obtain a square (627264 = 792²).

The spelling of 870342 in words is "eight hundred seventy thousand, three hundred forty-two".