47731628 has 24 divisors (see below), whose sum is σ = 98045472. Its totient is φ = 19903104.

The previous prime is 47731613. The next prime is 47731633. The reversal of 47731628 is 82613774.

47731628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 47731591 and 47731600.

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 in 7 ways as a sum of consecutive naturals, for example, 22001 + ... + 24072.

It is an arithmetic number, because the mean of its divisors is an integer number (4085228).

Almost surely, 2^47731628 is an apocalyptic number.

It is an amenable number.

47731628 is an abundant number, since it is smaller than the sum of its proper divisors (50313844).

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

47731628 is a wasteful number, since it uses less digits than its factorization.

47731628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46121 (or 46119 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

The square root of 47731628 is about 6908.8080013849. The cubic root of 47731628 is about 362.7455408184.

The spelling of 47731628 in words is "forty-seven million, seven hundred thirty-one thousand, six hundred twenty-eight".