845484481 has 4 divisors (see below), whose sum is σ = 845556912. Its totient is φ = 845412052.

The previous prime is 845484383. The next prime is 845484517. The reversal of 845484481 is 184484548.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 845484481 - 2¹⁷ = 845353409 is a prime.

It is a super-2 number, since 2×845484481² = 1429688015223678722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (845484181) 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, 14275 + ... + 43528.

It is an arithmetic number, because the mean of its divisors is an integer number (211389228).

Almost surely, 2^845484481 is an apocalyptic number.

It is an amenable number.

845484481 is a deficient number, since it is larger than the sum of its proper divisors (72431).

845484481 is a wasteful number, since it uses less digits than its factorization.

845484481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72430.

The product of its digits is 655360, while the sum is 46.

The square root of 845484481 is about 29077.2158398977. The cubic root of 845484481 is about 945.5878432426.

The spelling of 845484481 in words is "eight hundred forty-five million, four hundred eighty-four thousand, four hundred eighty-one".