894979665 has 16 divisors (see below), whose sum is σ = 1591075200. Its totient is φ = 477322416.

The previous prime is 894979649. The next prime is 894979721. The reversal of 894979665 is 566979498.

It is a happy number.

894979665 is a `hidden beast` number, since 89 + 497 + 9 + 6 + 65 = 666.

It is not a de Polignac number, because 894979665 - 2⁴ = 894979649 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3314605 + ... + 3314874.

It is an arithmetic number, because the mean of its divisors is an integer number (99442200).

Almost surely, 2^894979665 is an apocalyptic number.

It is an amenable number.

894979665 is a deficient number, since it is larger than the sum of its proper divisors (696095535).

894979665 is a wasteful number, since it uses less digits than its factorization.

894979665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6629493 (or 6629487 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

The square root of 894979665 is about 29916.2107393299. The cubic root of 894979665 is about 963.6908213598.

The spelling of 894979665 in words is "eight hundred ninety-four million, nine hundred seventy-nine thousand, six hundred sixty-five".