47036945 has 8 divisors (see below), whose sum is σ = 57079080. Its totient is φ = 37206400.

The previous prime is 47036939. The next prime is 47036947. The reversal of 47036945 is 54963074.

47036945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 18496 + 47018449 = 136^2 + 6857^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47036945 - 2⁴ = 47036929 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 47036899 and 47036908.

It is not an unprimeable number, because it can be changed into a prime (47036947) 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 7 ways as a sum of consecutive naturals, for example, 52406 + ... + 53295.

It is an arithmetic number, because the mean of its divisors is an integer number (7134885).

Almost surely, 2^47036945 is an apocalyptic number.

It is an amenable number.

47036945 is a deficient number, since it is larger than the sum of its proper divisors (10042135).

47036945 is a wasteful number, since it uses less digits than its factorization.

47036945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105795.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 47036945 is about 6858.3485621540. The cubic root of 47036945 is about 360.9771421699.

The spelling of 47036945 in words is "forty-seven million, thirty-six thousand, nine hundred forty-five".