47947245 has 32 divisors (see below), whose sum is σ = 80123904. Its totient is φ = 24460800.

The previous prime is 47947243. The next prime is 47947253. The reversal of 47947245 is 54274974.

It is not a de Polignac number, because 47947245 - 2¹ = 47947243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47947197 and 47947206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47947243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31860 + ... + 33330.

It is an arithmetic number, because the mean of its divisors is an integer number (2503872).

Almost surely, 2^47947245 is an apocalyptic number.

It is an amenable number.

47947245 is a deficient number, since it is larger than the sum of its proper divisors (32176659).

47947245 is a wasteful number, since it uses less digits than its factorization.

47947245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573.

The product of its digits is 282240, while the sum is 42.

The square root of 47947245 is about 6924.3949194135. The cubic root of 47947245 is about 363.2909278194.

The spelling of 47947245 in words is "forty-seven million, nine hundred forty-seven thousand, two hundred forty-five".