47795445 has 12 divisors (see below), whose sum is σ = 82845516. Its totient is φ = 25490880.

The previous prime is 47795443. The next prime is 47795471. The reversal of 47795445 is 54459774.

It can be written as a sum of positive squares in 2 ways, for example, as 29877156 + 17918289 = 5466^2 + 4233^2 .

It is not a de Polignac number, because 47795445 - 2¹ = 47795443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1062121 = 47795445 / (4 + 7 + 7 + 9 + 5 + 4 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 47795445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47795441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 531016 + ... + 531105.

It is an arithmetic number, because the mean of its divisors is an integer number (6903793).

Almost surely, 2^47795445 is an apocalyptic number.

47795445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47795445 is a deficient number, since it is larger than the sum of its proper divisors (35050071).

47795445 is a wasteful number, since it uses less digits than its factorization.

47795445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062132 (or 1062129 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 47795445 is about 6913.4249833205. The cubic root of 47795445 is about 362.9071319474.

The spelling of 47795445 in words is "forty-seven million, seven hundred ninety-five thousand, four hundred forty-five".