183894985 has 8 divisors (see below), whose sum is σ = 220866120. Its totient is φ = 146987904.

The previous prime is 183894979. The next prime is 183895013. The reversal of 183894985 is 589498381.

183894985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 50168889 + 133726096 = 7083^2 + 11564^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 183894985 - 2¹¹ = 183892937 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9450 + ... + 21379.

It is an arithmetic number, because the mean of its divisors is an integer number (27608265).

Almost surely, 2^183894985 is an apocalyptic number.

It is an amenable number.

183894985 is a deficient number, since it is larger than the sum of its proper divisors (36971135).

183894985 is a wasteful number, since it uses less digits than its factorization.

183894985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32027.

The product of its digits is 2488320, while the sum is 55.

The square root of 183894985 is about 13560.7885095226. The cubic root of 183894985 is about 568.6651693307.

The spelling of 183894985 in words is "one hundred eighty-three million, eight hundred ninety-four thousand, nine hundred eighty-five".