866272900 has 18 divisors (see below), whose sum is σ = 1879812410. Its totient is φ = 346509120.

The previous prime is 866272877. The next prime is 866272919. The reversal of 866272900 is 9272668.

It can be written as a sum of positive squares in 3 ways, for example, as 30276 + 866242624 = 174^2 + 29432^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4331265 + ... + 4331464.

Almost surely, 2^866272900 is an apocalyptic number.

It is an amenable number.

866272900 is an abundant number, since it is smaller than the sum of its proper divisors (1013539510).

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

866272900 is a wasteful number, since it uses less digits than its factorization.

866272900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8662743 (or 8662736 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 866272900 is about 29432.5143336413. The cubic root of 866272900 is about 953.2750859593.

The spelling of 866272900 in words is "eight hundred sixty-six million, two hundred seventy-two thousand, nine hundred".