845647113 has 4 divisors (see below), whose sum is σ = 1127529488. Its totient is φ = 563764740.

The previous prime is 845647093. The next prime is 845647129. The reversal of 845647113 is 311746548.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 845647113 - 2⁹ = 845646601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (845647013) 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, 140941183 + ... + 140941188.

It is an arithmetic number, because the mean of its divisors is an integer number (281882372).

Almost surely, 2^845647113 is an apocalyptic number.

It is an amenable number.

845647113 is a deficient number, since it is larger than the sum of its proper divisors (281882375).

845647113 is a wasteful number, since it uses less digits than its factorization.

845647113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281882374.

The product of its digits is 80640, while the sum is 39.

The square root of 845647113 is about 29080.0122592821. The cubic root of 845647113 is about 945.6484684370.

The spelling of 845647113 in words is "eight hundred forty-five million, six hundred forty-seven thousand, one hundred thirteen".