845043694 has 16 divisors (see below), whose sum is σ = 1427406336. Its totient is φ = 371719800.

The previous prime is 845043653. The next prime is 845043707. The reversal of 845043694 is 496340548.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 845043694.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 618852 + ... + 620215.

It is an arithmetic number, because the mean of its divisors is an integer number (89212896).

Almost surely, 2^845043694 is an apocalyptic number.

845043694 is a deficient number, since it is larger than the sum of its proper divisors (582362642).

845043694 is a wasteful number, since it uses less digits than its factorization.

845043694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239111.

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 845043694 is about 29069.6352574297. The cubic root of 845043694 is about 945.4234896318.

The spelling of 845043694 in words is "eight hundred forty-five million, forty-three thousand, six hundred ninety-four".