845242863 has 4 divisors (see below), whose sum is σ = 1126990488. Its totient is φ = 563495240.

The previous prime is 845242819. The next prime is 845242889. The reversal of 845242863 is 368242548.

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

It is a cyclic number.

It is not a de Polignac number, because 845242863 - 2¹⁶ = 845177327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845242163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140873808 + ... + 140873813.

It is an arithmetic number, because the mean of its divisors is an integer number (281747622).

Almost surely, 2^845242863 is an apocalyptic number.

845242863 is a deficient number, since it is larger than the sum of its proper divisors (281747625).

845242863 is a wasteful number, since it uses less digits than its factorization.

845242863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281747624.

The product of its digits is 368640, while the sum is 42.

The square root of 845242863 is about 29073.0607779780. The cubic root of 845242863 is about 945.4977596610.

It can be divided in two parts, 8452 and 42863, that added together give a palindrome (51315).

The spelling of 845242863 in words is "eight hundred forty-five million, two hundred forty-two thousand, eight hundred sixty-three".