870868943 has 12 divisors (see below), whose sum is σ = 999555312. Its totient is φ = 743260800.

The previous prime is 870868937. The next prime is 870868949. The reversal of 870868943 is 349868078.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (870868937) and next prime (870868949).

It is not a de Polignac number, because 870868943 - 2¹⁶ = 870803407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870868949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1563221 + ... + 1563777.

It is an arithmetic number, because the mean of its divisors is an integer number (83296276).

Almost surely, 2^870868943 is an apocalyptic number.

870868943 is a deficient number, since it is larger than the sum of its proper divisors (128686369).

870868943 is an frugal number, since it uses more digits than its factorization.

870868943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The square root of 870868943 is about 29510.4886946997. The cubic root of 870868943 is about 954.9579919937.

The spelling of 870868943 in words is "eight hundred seventy million, eight hundred sixty-eight thousand, nine hundred forty-three".