47771812 has 48 divisors (see below), whose sum is σ = 93929472. Its totient is φ = 21077280.

The previous prime is 47771797. The next prime is 47771849. The reversal of 47771812 is 21817774.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376093 + ... + 376219.

It is an arithmetic number, because the mean of its divisors is an integer number (1956864).

Almost surely, 2^47771812 is an apocalyptic number.

It is an amenable number.

47771812 is a deficient number, since it is larger than the sum of its proper divisors (46157660).

47771812 is a wasteful number, since it uses less digits than its factorization.

47771812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 326 counting only the distinct ones).

The product of its digits is 21952, while the sum is 37.

The square root of 47771812 is about 6911.7155612771. The cubic root of 47771812 is about 362.8473075699.

The spelling of 47771812 in words is "forty-seven million, seven hundred seventy-one thousand, eight hundred twelve".