863066884 has 27 divisors (see below), whose sum is σ = 1556210943. Its totient is φ = 418812768.

The previous prime is 863066861. The next prime is 863066891. The reversal of 863066884 is 488660368.

The square root of 863066884 is 29378.

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

It can be written as a sum of positive squares in 4 ways, for example, as 298529284 + 564537600 = 17278^2 + 23760^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2173774 + ... + 2174170.

Almost surely, 2^863066884 is an apocalyptic number.

863066884 is the 29378-th square number.

It is an amenable number.

863066884 is a deficient number, since it is larger than the sum of its proper divisors (693144059).

863066884 is an equidigital number, since it uses as much as digits as its factorization.

863066884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 49.

The cubic root of 863066884 is about 952.0976305141.

Multiplying 863066884 by its sum of digits (49), we get a square (42290277316 = 205646²).

The spelling of 863066884 in words is "eight hundred sixty-three million, sixty-six thousand, eight hundred eighty-four".