870608173 has 4 divisors (see below), whose sum is σ = 870837408. Its totient is φ = 870378940.

The previous prime is 870608171. The next prime is 870608197. The reversal of 870608173 is 371806078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 870608173 - 2¹ = 870608171 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870608171) 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, 108823 + ... + 116548.

It is an arithmetic number, because the mean of its divisors is an integer number (217709352).

Almost surely, 2^870608173 is an apocalyptic number.

It is an amenable number.

870608173 is a deficient number, since it is larger than the sum of its proper divisors (229235).

870608173 is a wasteful number, since it uses less digits than its factorization.

870608173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229234.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 870608173 is about 29506.0701043023. The cubic root of 870608173 is about 954.8626660332.

The spelling of 870608173 in words is "eight hundred seventy million, six hundred eight thousand, one hundred seventy-three".