47447565 has 32 divisors (see below), whose sum is σ = 83203200. Its totient is φ = 22897920.

The previous prime is 47447563. The next prime is 47447593. The reversal of 47447565 is 56574474.

It is not a de Polignac number, because 47447565 - 2¹ = 47447563 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 43851 + ... + 44919.

It is an arithmetic number, because the mean of its divisors is an integer number (2600100).

Almost surely, 2^47447565 is an apocalyptic number.

It is an amenable number.

47447565 is a deficient number, since it is larger than the sum of its proper divisors (35755635).

47447565 is a wasteful number, since it uses less digits than its factorization.

47447565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357.

The product of its digits is 470400, while the sum is 42.

The square root of 47447565 is about 6888.2192909343. The cubic root of 47447565 is about 362.0245117352.

The spelling of 47447565 in words is "forty-seven million, four hundred forty-seven thousand, five hundred sixty-five".