870193221 has 8 divisors (see below), whose sum is σ = 1162765440. Its totient is φ = 578874912.

The previous prime is 870193199. The next prime is 870193271. The reversal of 870193221 is 122391078.

870193221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 870193221 - 2²⁹ = 333322309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870193271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311856 + ... + 314633.

It is an arithmetic number, because the mean of its divisors is an integer number (145345680).

Almost surely, 2^870193221 is an apocalyptic number.

It is an amenable number.

870193221 is a deficient number, since it is larger than the sum of its proper divisors (292572219).

870193221 is a wasteful number, since it uses less digits than its factorization.

870193221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626955.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 870193221 is about 29499.0376283702. The cubic root of 870193221 is about 954.7109387115.

The spelling of 870193221 in words is "eight hundred seventy million, one hundred ninety-three thousand, two hundred twenty-one".