870093 has 18 divisors (see below), whose sum is σ = 1462734. Its totient is φ = 496944.

The previous prime is 870083. The next prime is 870097. The reversal of 870093 is 390078.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 636804 + 233289 = 798^2 + 483^2 .

It is not a de Polignac number, because 870093 - 2¹⁰ = 869069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870097) 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 17 ways as a sum of consecutive naturals, for example, 546 + ... + 1427.

It is an arithmetic number, because the mean of its divisors is an integer number (81263).

2⁸⁷⁰⁰⁹³ is an apocalyptic number.

It is an amenable number.

870093 is a deficient number, since it is larger than the sum of its proper divisors (592641).

870093 is a wasteful number, since it uses less digits than its factorization.

870093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993 (or 1983 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 870093 is about 932.7877572095. The cubic root of 870093 is about 95.4674285642.

The spelling of 870093 in words is "eight hundred seventy thousand, ninety-three".