868742593 has 4 divisors (see below), whose sum is σ = 869284800. Its totient is φ = 868200388.

The previous prime is 868742587. The next prime is 868742603. The reversal of 868742593 is 395247868.

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 868742593 - 2⁵ = 868742561 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 868742593.

It is not an unprimeable number, because it can be changed into a prime (868742513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268693 + ... + 271906.

It is an arithmetic number, because the mean of its divisors is an integer number (217321200).

Almost surely, 2^868742593 is an apocalyptic number.

It is an amenable number.

868742593 is a deficient number, since it is larger than the sum of its proper divisors (542207).

868742593 is a wasteful number, since it uses less digits than its factorization.

868742593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542206.

The product of its digits is 2903040, while the sum is 52.

The square root of 868742593 is about 29474.4396554031. The cubic root of 868742593 is about 954.1801367900.

The spelling of 868742593 in words is "eight hundred sixty-eight million, seven hundred forty-two thousand, five hundred ninety-three".