845239376 has 20 divisors (see below), whose sum is σ = 1654537332. Its totient is φ = 418262016.

The previous prime is 845239361. The next prime is 845239387. The reversal of 845239376 is 673932548.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 672053776 + 173185600 = 25924^2 + 13160^2 .

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 845239376.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270755 + ... + 273858.

Almost surely, 2^845239376 is an apocalyptic number.

It is an amenable number.

845239376 is a deficient number, since it is larger than the sum of its proper divisors (809297956).

845239376 is a wasteful number, since it uses less digits than its factorization.

845239376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544718 (or 544712 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 47.

The square root of 845239376 is about 29073.0008083101. Note that the first 3 decimals coincide. The cubic root of 845239376 is about 945.4964594606.

Subtracting from 845239376 its sum of digits (47), we obtain a square (845239329 = 29073²).

The spelling of 845239376 in words is "eight hundred forty-five million, two hundred thirty-nine thousand, three hundred seventy-six".