868297782 has 16 divisors (see below), whose sum is σ = 1894468032. Its totient is φ = 263120520.

The previous prime is 868297757. The next prime is 868297783. The reversal of 868297782 is 287792868.

It is a super-2 number, since 2×868297782² = 1507882076452239048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868297783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6577948 + ... + 6578079.

It is an arithmetic number, because the mean of its divisors is an integer number (118404252).

Almost surely, 2^868297782 is an apocalyptic number.

868297782 is an abundant number, since it is smaller than the sum of its proper divisors (1026170250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

868297782 is a wasteful number, since it uses less digits than its factorization.

868297782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13156043.

The product of its digits is 5419008, while the sum is 57.

The square root of 868297782 is about 29466.8929817855. The cubic root of 868297782 is about 954.0172568287.

The spelling of 868297782 in words is "eight hundred sixty-eight million, two hundred ninety-seven thousand, seven hundred eighty-two".