842670 has 32 divisors (see below), whose sum is σ = 2247840. Its totient is φ = 224640.

The previous prime is 842657. The next prime is 842701. The reversal of 842670 is 76248.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1291 + ... + 1830.

It is an arithmetic number, because the mean of its divisors is an integer number (70245).

2⁸⁴²⁶⁷⁰ is an apocalyptic number.

842670 is an abundant number, since it is smaller than the sum of its proper divisors (1405170).

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

842670 is a wasteful number, since it uses less digits than its factorization.

842670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3137 (or 3131 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 842670 is about 917.9705877641. The cubic root of 842670 is about 94.4537440542.

The spelling of 842670 in words is "eight hundred forty-two thousand, six hundred seventy".