866107732 has 18 divisors (see below), whose sum is σ = 1763148282. Its totient is φ = 371188944.

The previous prime is 866107691. The next prime is 866107741. The reversal of 866107732 is 237701668.

It can be written as a sum of positive squares in only one way, i.e., 773062416 + 93045316 = 27804^2 + 9646^2 .

It is a congruent number.

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, 2209263 + ... + 2209654.

Almost surely, 2^866107732 is an apocalyptic number.

It is an amenable number.

866107732 is an abundant number, since it is smaller than the sum of its proper divisors (897040550).

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

866107732 is a wasteful number, since it uses less digits than its factorization.

866107732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4418935 (or 4418926 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 866107732 is about 29429.7083233932. The cubic root of 866107732 is about 953.2144966819.

The spelling of 866107732 in words is "eight hundred sixty-six million, one hundred seven thousand, seven hundred thirty-two".