894685665 has 16 divisors (see below), whose sum is σ = 1449619200. Its totient is φ = 471124992.

The previous prime is 894685657. The next prime is 894685667. The reversal of 894685665 is 566586498.

It is a happy number.

It is not a de Polignac number, because 894685665 - 2³ = 894685657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (894685667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376320 + ... + 378689.

It is an arithmetic number, because the mean of its divisors is an integer number (90601200).

Almost surely, 2^894685665 is an apocalyptic number.

It is an amenable number.

894685665 is a deficient number, since it is larger than the sum of its proper divisors (554933535).

894685665 is a wasteful number, since it uses less digits than its factorization.

894685665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755096.

The product of its digits is 12441600, while the sum is 57.

The square root of 894685665 is about 29911.2966118154. The cubic root of 894685665 is about 963.5852859522.

The spelling of 894685665 in words is "eight hundred ninety-four million, six hundred eighty-five thousand, six hundred sixty-five".