47108728 has 16 divisors (see below), whose sum is σ = 88457760. Its totient is φ = 23520000.

The previous prime is 47108707. The next prime is 47108741. The reversal of 47108728 is 82780174.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2088 + ... + 9928.

It is an arithmetic number, because the mean of its divisors is an integer number (5528610).

Almost surely, 2^47108728 is an apocalyptic number.

It is an amenable number.

47108728 is a deficient number, since it is larger than the sum of its proper divisors (41349032).

47108728 is a wasteful number, since it uses less digits than its factorization.

47108728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8598 (or 8594 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 47108728 is about 6863.5798239694. The cubic root of 47108728 is about 361.1606777002.

The spelling of 47108728 in words is "forty-seven million, one hundred eight thousand, seven hundred twenty-eight".