894164666 has 8 divisors (see below), whose sum is σ = 1356317460. Its totient is φ = 442058848.

The previous prime is 894164641. The next prime is 894164671. The reversal of 894164666 is 666461498.

It can be written as a sum of positive squares in 2 ways, for example, as 785400625 + 108764041 = 28025^2 + 10429^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2511521 + ... + 2511876.

Almost surely, 2^894164666 is an apocalyptic number.

894164666 is a deficient number, since it is larger than the sum of its proper divisors (462152794).

894164666 is a wasteful number, since it uses less digits than its factorization.

894164666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5023488.

The product of its digits is 1492992, while the sum is 50.

The square root of 894164666 is about 29902.5862761066. The cubic root of 894164666 is about 963.3982092803.

The spelling of 894164666 in words is "eight hundred ninety-four million, one hundred sixty-four thousand, six hundred sixty-six".