47282728 has 8 divisors (see below), whose sum is σ = 88655130. Its totient is φ = 23641360.

The previous prime is 47282713. The next prime is 47282759. The reversal of 47282728 is 82728274.

It can be written as a sum of positive squares in only one way, i.e., 46539684 + 743044 = 6822^2 + 862^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2955163 + ... + 2955178.

Almost surely, 2^47282728 is an apocalyptic number.

It is an amenable number.

47282728 is a deficient number, since it is larger than the sum of its proper divisors (41372402).

47282728 is a wasteful number, since it uses less digits than its factorization.

47282728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5910347 (or 5910343 counting only the distinct ones).

The product of its digits is 100352, while the sum is 40.

The square root of 47282728 is about 6876.2437420441. The cubic root of 47282728 is about 361.6047903469.

The spelling of 47282728 in words is "forty-seven million, two hundred eighty-two thousand, seven hundred twenty-eight".