47908432 has 40 divisors (see below), whose sum is σ = 109055520. Its totient is φ = 20100480.

The previous prime is 47908429. The next prime is 47908447. The reversal of 47908432 is 23480974.

It is a happy number.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 47908391 and 47908400.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8182 + ... + 12757.

It is an arithmetic number, because the mean of its divisors is an integer number (2726388).

Almost surely, 2^47908432 is an apocalyptic number.

It is an amenable number.

47908432 is an abundant number, since it is smaller than the sum of its proper divisors (61147088).

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

47908432 is a wasteful number, since it uses less digits than its factorization.

47908432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20971 (or 20965 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 47908432 is about 6921.5917244518. The cubic root of 47908432 is about 363.1928740993.

The spelling of 47908432 in words is "forty-seven million, nine hundred eight thousand, four hundred thirty-two".