47665472 has 28 divisors (see below), whose sum is σ = 97147380. Its totient is φ = 23187456.

The previous prime is 47665469. The next prime is 47665477. The reversal of 47665472 is 27456674.

It can be written as a sum of positive squares in 2 ways, for example, as 42719296 + 4946176 = 6536^2 + 2224^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47665477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7697 + ... + 12432.

Almost surely, 2^47665472 is an apocalyptic number.

It is an amenable number.

47665472 is an abundant number, since it is smaller than the sum of its proper divisors (49481908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47665472 is a wasteful number, since it uses less digits than its factorization.

47665472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20178 (or 20168 counting only the distinct ones).

The product of its digits is 282240, while the sum is 41.

The square root of 47665472 is about 6904.0185399519. The cubic root of 47665472 is about 362.5778749853.

The spelling of 47665472 in words is "forty-seven million, six hundred sixty-five thousand, four hundred seventy-two".