47454645 has 64 divisors (see below), whose sum is σ = 91422720. Its totient is φ = 20563200.

The previous prime is 47454637. The next prime is 47454691. The reversal of 47454645 is 54645474.

47454645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47454645 - 2³ = 47454637 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 198436 + ... + 198674.

It is an arithmetic number, because the mean of its divisors is an integer number (1428480).

Almost surely, 2^47454645 is an apocalyptic number.

It is an amenable number.

47454645 is a deficient number, since it is larger than the sum of its proper divisors (43968075).

47454645 is a wasteful number, since it uses less digits than its factorization.

47454645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346.

The product of its digits is 268800, while the sum is 39.

The square root of 47454645 is about 6888.7331926850. The cubic root of 47454645 is about 362.0425176193.

The spelling of 47454645 in words is "forty-seven million, four hundred fifty-four thousand, six hundred forty-five".