867804836 has 12 divisors (see below), whose sum is σ = 1519242060. Its totient is φ = 433735680.

The previous prime is 867804829. The next prime is 867804907. The reversal of 867804836 is 638408768.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 501312100 + 366492736 = 22390^2 + 19144^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29585 + ... + 51096.

It is an arithmetic number, because the mean of its divisors is an integer number (126603505).

Almost surely, 2^867804836 is an apocalyptic number.

It is an amenable number.

867804836 is a deficient number, since it is larger than the sum of its proper divisors (651437224).

867804836 is a wasteful number, since it uses less digits than its factorization.

867804836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83374 (or 83372 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 50.

The square root of 867804836 is about 29458.5273902142. The cubic root of 867804836 is about 953.8366858988.

The spelling of 867804836 in words is "eight hundred sixty-seven million, eight hundred four thousand, eight hundred thirty-six".