47375945 has 4 divisors (see below), whose sum is σ = 56851140. Its totient is φ = 37900752.

The previous prime is 47375941. The next prime is 47375959. The reversal of 47375945 is 54957374.

47375945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16949689 + 30426256 = 4117^2 + 5516^2 .

It is a cyclic number.

It is not a de Polignac number, because 47375945 - 2² = 47375941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47375896 and 47375905.

It is not an unprimeable number, because it can be changed into a prime (47375941) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4737590 + ... + 4737599.

It is an arithmetic number, because the mean of its divisors is an integer number (14212785).

Almost surely, 2^47375945 is an apocalyptic number.

It is an amenable number.

47375945 is a deficient number, since it is larger than the sum of its proper divisors (9475195).

47375945 is an equidigital number, since it uses as much as digits as its factorization.

47375945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9475194.

The product of its digits is 529200, while the sum is 44.

The square root of 47375945 is about 6883.0185965171. The cubic root of 47375945 is about 361.8422666800.

The spelling of 47375945 in words is "forty-seven million, three hundred seventy-five thousand, nine hundred forty-five".