870214666 has 8 divisors (see below), whose sum is σ = 1382105700. Its totient is φ = 409512768.

The previous prime is 870214589. The next prime is 870214669. The reversal of 870214666 is 666412078.

It can be written as a sum of positive squares in 2 ways, for example, as 854334441 + 15880225 = 29229^2 + 3985^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (870214669) 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, 12797241 + ... + 12797308.

Almost surely, 2^870214666 is an apocalyptic number.

870214666 is a deficient number, since it is larger than the sum of its proper divisors (511891034).

870214666 is a wasteful number, since it uses less digits than its factorization.

870214666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25594568.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 870214666 is about 29499.4011125650. The cubic root of 870214666 is about 954.7187812639.

The spelling of 870214666 in words is "eight hundred seventy million, two hundred fourteen thousand, six hundred sixty-six".