870118 has 4 divisors (see below), whose sum is σ = 1305180. Its totient is φ = 435058.

The previous prime is 870109. The next prime is 870127. The reversal of 870118 is 811078.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (870109) and next prime (870127).

It is a junction number, because it is equal to n+sod(n) for n = 870092 and 870101.

It is a congruent number.

It is an unprimeable number.

870118 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 217528 + ... + 217531.

It is an arithmetic number, because the mean of its divisors is an integer number (326295).

2⁸⁷⁰¹¹⁸ is an apocalyptic number.

870118 is a deficient number, since it is larger than the sum of its proper divisors (435062).

870118 is a wasteful number, since it uses less digits than its factorization.

870118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435061.

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 870118 is about 932.8011578037. The cubic root of 870118 is about 95.4683428966.

The spelling of 870118 in words is "eight hundred seventy thousand, one hundred eighteen".