845478736 has 20 divisors (see below), whose sum is σ = 1639022452. Its totient is φ = 422505216.

The previous prime is 845478713. The next prime is 845478757. The reversal of 845478736 is 637874548.

845478736 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 2 ways, for example, as 700131600 + 145347136 = 26460^2 + 12056^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17260 + ... + 44596.

Almost surely, 2^845478736 is an apocalyptic number.

It is an amenable number.

845478736 is a deficient number, since it is larger than the sum of its proper divisors (793543716).

845478736 is a wasteful number, since it uses less digits than its factorization.

845478736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29278 (or 29272 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 52.

The square root of 845478736 is about 29077.1170510420. The cubic root of 845478736 is about 945.5857015063.

The spelling of 845478736 in words is "eight hundred forty-five million, four hundred seventy-eight thousand, seven hundred thirty-six".