47947812 has 48 divisors (see below), whose sum is σ = 122472000. Its totient is φ = 14479360.

The previous prime is 47947807. The next prime is 47947829. The reversal of 47947812 is 21874974.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 58864 + ... + 59672.

It is an arithmetic number, because the mean of its divisors is an integer number (2551500).

Almost surely, 2^47947812 is an apocalyptic number.

It is an amenable number.

47947812 is an abundant number, since it is smaller than the sum of its proper divisors (74524188).

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

47947812 is a wasteful number, since it uses less digits than its factorization.

47947812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276 (or 1274 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 47947812 is about 6924.4358614980. The cubic root of 47947812 is about 363.2923598457.

The spelling of 47947812 in words is "forty-seven million, nine hundred forty-seven thousand, eight hundred twelve".