868422613 has 4 divisors (see below), whose sum is σ = 868540428. Its totient is φ = 868304800.

The previous prime is 868422563. The next prime is 868422637. The reversal of 868422613 is 316224868.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 430064644 + 438357969 = 20738^2 + 20937^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868422613 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 (868426613) 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, 47056 + ... + 62857.

It is an arithmetic number, because the mean of its divisors is an integer number (217135107).

Almost surely, 2^868422613 is an apocalyptic number.

It is an amenable number.

868422613 is a deficient number, since it is larger than the sum of its proper divisors (117815).

868422613 is a wasteful number, since it uses less digits than its factorization.

868422613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117814.

The product of its digits is 110592, while the sum is 40.

The square root of 868422613 is about 29469.0110624704. The cubic root of 868422613 is about 954.0629727970.

The spelling of 868422613 in words is "eight hundred sixty-eight million, four hundred twenty-two thousand, six hundred thirteen".