47447523 has 12 divisors (see below), whose sum is σ = 68711448. Its totient is φ = 31550400.

The previous prime is 47447501. The next prime is 47447549. The reversal of 47447523 is 32574474.

It is a de Polignac number, because none of the positive numbers 2^k-47447523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47447563) 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, 2965 + ... + 10182.

It is an arithmetic number, because the mean of its divisors is an integer number (5725954).

Almost surely, 2^47447523 is an apocalyptic number.

47447523 is a deficient number, since it is larger than the sum of its proper divisors (21263925).

47447523 is a wasteful number, since it uses less digits than its factorization.

47447523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13554 (or 13551 counting only the distinct ones).

The product of its digits is 94080, while the sum is 36.

The square root of 47447523 is about 6888.2162422502. The cubic root of 47447523 is about 362.0244049153.

The spelling of 47447523 in words is "forty-seven million, four hundred forty-seven thousand, five hundred twenty-three".