47809452 has 24 divisors (see below), whose sum is σ = 113085616. Its totient is φ = 15717888.

The previous prime is 47809451. The next prime is 47809477. The reversal of 47809452 is 25490874.

47809452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 47809452.

It is not an unprimeable number, because it can be changed into a prime (47809451) 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, 26413 + ... + 28164.

Almost surely, 2^47809452 is an apocalyptic number.

It is an amenable number.

47809452 is an abundant number, since it is smaller than the sum of its proper divisors (65276164).

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

47809452 is a wasteful number, since it uses less digits than its factorization.

47809452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54657 (or 54655 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 47809452 is about 6914.4379381118. The cubic root of 47809452 is about 362.9425798422.

The spelling of 47809452 in words is "forty-seven million, eight hundred nine thousand, four hundred fifty-two".