864343193 has 20 divisors (see below), whose sum is σ = 1061466960. Its totient is φ = 701835624.

The previous prime is 864343163. The next prime is 864343201. The reversal of 864343193 is 391343468.

It is not a de Polignac number, because 864343193 - 2¹² = 864339097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 864343193.

It is not an unprimeable number, because it can be changed into a prime (864343163) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36146 + ... + 55092.

It is an arithmetic number, because the mean of its divisors is an integer number (53073348).

Almost surely, 2^864343193 is an apocalyptic number.

It is an amenable number.

864343193 is a deficient number, since it is larger than the sum of its proper divisors (197123767).

864343193 is an equidigital number, since it uses as much as digits as its factorization.

864343193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18994 (or 18973 counting only the distinct ones).

The product of its digits is 186624, while the sum is 41.

The square root of 864343193 is about 29399.7141652772. The cubic root of 864343193 is about 952.5667221099.

The spelling of 864343193 in words is "eight hundred sixty-four million, three hundred forty-three thousand, one hundred ninety-three".