864912200 has 24 divisors (see below), whose sum is σ = 2010921330. Its totient is φ = 345964800.

The previous prime is 864912151. The next prime is 864912227. The reversal of 864912200 is 2219468.

It can be written as a sum of positive squares in 3 ways, for example, as 567487684 + 297424516 = 23822^2 + 17246^2 .

It is a super-2 number, since 2×864912200² = 1496146227417680000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2162081 + ... + 2162480.

Almost surely, 2^864912200 is an apocalyptic number.

It is an amenable number.

864912200 is an abundant number, since it is smaller than the sum of its proper divisors (1146009130).

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

864912200 is a wasteful number, since it uses less digits than its factorization.

864912200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4324577 (or 4324568 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 864912200 is about 29409.3896570466. The cubic root of 864912200 is about 952.7757047771.

The spelling of 864912200 in words is "eight hundred sixty-four million, nine hundred twelve thousand, two hundred".