845068394 has 4 divisors (see below), whose sum is σ = 1267602594. Its totient is φ = 422534196.

The previous prime is 845068363. The next prime is 845068403. The reversal of 845068394 is 493860548.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 683142769 + 161925625 = 26137^2 + 12725^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211267097 + ... + 211267100.

Almost surely, 2^845068394 is an apocalyptic number.

845068394 is a deficient number, since it is larger than the sum of its proper divisors (422534200).

845068394 is a wasteful number, since it uses less digits than its factorization.

845068394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422534199.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 845068394 is about 29070.0600962571. The cubic root of 845068394 is about 945.4327008844.

The spelling of 845068394 in words is "eight hundred forty-five million, sixty-eight thousand, three hundred ninety-four".