868304089 has 9 divisors (see below), whose sum is σ = 881798463. Its totient is φ = 855014472.

The previous prime is 868304083. The next prime is 868304131. The reversal of 868304089 is 980403868.

The square root of 868304089 is 29467.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 471975625 + 396328464 = 21725^2 + 19908^2 .

It is not a de Polignac number, because 868304089 - 2³ = 868304081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868304081) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2327707 + ... + 2328079.

It is an arithmetic number, because the mean of its divisors is an integer number (97977607).

Almost surely, 2^868304089 is an apocalyptic number.

868304089 is the 29467-th square number.

868304089 is the 14734-th centered octagonal number.

It is an amenable number.

868304089 is a deficient number, since it is larger than the sum of its proper divisors (13494374).

868304089 is an frugal number, since it uses more digits than its factorization.

868304089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The cubic root of 868304089 is about 954.0195667015.

Multiplying 868304089 by its product of nonzero digits (331776), we get a square (288082457432064 = 16972992²).

The spelling of 868304089 in words is "eight hundred sixty-eight million, three hundred four thousand, eighty-nine".