868598641 has 4 divisors (see below), whose sum is σ = 896617984. Its totient is φ = 840579300.

The previous prime is 868598639. The next prime is 868598677. The reversal of 868598641 is 146895868.

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 868598641 - 2¹ = 868598639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868598441) 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, 14009625 + ... + 14009686.

It is an arithmetic number, because the mean of its divisors is an integer number (224154496).

Almost surely, 2^868598641 is an apocalyptic number.

It is an amenable number.

868598641 is a deficient number, since it is larger than the sum of its proper divisors (28019343).

868598641 is a wasteful number, since it uses less digits than its factorization.

868598641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28019342.

The product of its digits is 3317760, while the sum is 55.

The square root of 868598641 is about 29471.9975739684. The cubic root of 868598641 is about 954.1274308341.

The spelling of 868598641 in words is "eight hundred sixty-eight million, five hundred ninety-eight thousand, six hundred forty-one".