868398797 has 4 divisors (see below), whose sum is σ = 992455776. Its totient is φ = 744341820.

The previous prime is 868398779. The next prime is 868398809. The reversal of 868398797 is 797893868.

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 868398797 - 2⁸ = 868398541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868398767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62028479 + ... + 62028492.

It is an arithmetic number, because the mean of its divisors is an integer number (248113944).

Almost surely, 2^868398797 is an apocalyptic number.

It is an amenable number.

868398797 is a deficient number, since it is larger than the sum of its proper divisors (124056979).

868398797 is a wasteful number, since it uses less digits than its factorization.

868398797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124056978.

The product of its digits is 36578304, while the sum is 65.

The square root of 868398797 is about 29468.6069742022. The cubic root of 868398797 is about 954.0542511711.

The spelling of 868398797 in words is "eight hundred sixty-eight million, three hundred ninety-eight thousand, seven hundred ninety-seven".