870238 has 8 divisors (see below), whose sum is σ = 1374120. Its totient is φ = 412200.

The previous prime is 870229. The next prime is 870239. The reversal of 870238 is 832078.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870239) by changing a digit.

870238 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11413 + ... + 11488.

It is an arithmetic number, because the mean of its divisors is an integer number (171765).

2⁸⁷⁰²³⁸ is an apocalyptic number.

870238 is a deficient number, since it is larger than the sum of its proper divisors (503882).

870238 is a wasteful number, since it uses less digits than its factorization.

870238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22922.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 870238 is about 932.8654779763. The cubic root of 870238 is about 95.4727314487.

The spelling of 870238 in words is "eight hundred seventy thousand, two hundred thirty-eight".