47509912 has 8 divisors (see below), whose sum is σ = 89081100. Its totient is φ = 23754952.

The previous prime is 47509879. The next prime is 47509981. The reversal of 47509912 is 21990574.

47509912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2969362 + ... + 2969377.

Almost surely, 2^47509912 is an apocalyptic number.

It is an amenable number.

47509912 is a deficient number, since it is larger than the sum of its proper divisors (41571188).

47509912 is a wasteful number, since it uses less digits than its factorization.

47509912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5938745 (or 5938741 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 47509912 is about 6892.7434305942. The cubic root of 47509912 is about 362.1830113557.

The spelling of 47509912 in words is "forty-seven million, five hundred nine thousand, nine hundred twelve".