870122843 has 4 divisors (see below), whose sum is σ = 882042408. Its totient is φ = 858203280.

The previous prime is 870122833. The next prime is 870122857. The reversal of 870122843 is 348221078.

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

It is a cyclic number.

It is not a de Polignac number, because 870122843 - 2⁶ = 870122779 is a prime.

It is a super-3 number, since 3×870122843³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870122833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5959673 + ... + 5959818.

It is an arithmetic number, because the mean of its divisors is an integer number (220510602).

Almost surely, 2^870122843 is an apocalyptic number.

870122843 is a deficient number, since it is larger than the sum of its proper divisors (11919565).

870122843 is a wasteful number, since it uses less digits than its factorization.

870122843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11919564.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 870122843 is about 29497.8447178773. The cubic root of 870122843 is about 954.6852001911.

The spelling of 870122843 in words is "eight hundred seventy million, one hundred twenty-two thousand, eight hundred forty-three".