866945276 has 12 divisors (see below), whose sum is σ = 1520434272. Its totient is φ = 432535488.

The previous prime is 866945273. The next prime is 866945297. The reversal of 866945276 is 672549668.

It is a super-2 number, since 2×866945276² = 1503188223157432352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866945273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232205 + ... + 235908.

It is an arithmetic number, because the mean of its divisors is an integer number (126702856).

Almost surely, 2^866945276 is an apocalyptic number.

It is an amenable number.

866945276 is a deficient number, since it is larger than the sum of its proper divisors (653488996).

866945276 is a wasteful number, since it uses less digits than its factorization.

866945276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468580 (or 468578 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 53.

The square root of 866945276 is about 29443.9344517678. The cubic root of 866945276 is about 953.5216570377.

The spelling of 866945276 in words is "eight hundred sixty-six million, nine hundred forty-five thousand, two hundred seventy-six".