47750728 has 16 divisors (see below), whose sum is σ = 89869500. Its totient is φ = 23785536.

The previous prime is 47750719. The next prime is 47750753. The reversal of 47750728 is 82705774.

It can be written as a sum of positive squares in 2 ways, for example, as 46267204 + 1483524 = 6802^2 + 1218^2 .

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, 8943 + ... + 13246.

Almost surely, 2^47750728 is an apocalyptic number.

It is an amenable number.

47750728 is a deficient number, since it is larger than the sum of its proper divisors (42118772).

47750728 is a wasteful number, since it uses less digits than its factorization.

47750728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22464 (or 22460 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 40.

The square root of 47750728 is about 6910.1901565731. The cubic root of 47750728 is about 362.7939190544.

The spelling of 47750728 in words is "forty-seven million, seven hundred fifty thousand, seven hundred twenty-eight".