47728672 has 12 divisors (see below), whose sum is σ = 93965886. Its totient is φ = 23864320.

The previous prime is 47728669. The next prime is 47728679. The reversal of 47728672 is 27682774.

It can be written as a sum of positive squares in only one way, i.e., 45643536 + 2085136 = 6756^2 + 1444^2 .

It is a super-2 number, since 2×47728672² = 4556052261767168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47728679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 745729 + ... + 745792.

Almost surely, 2^47728672 is an apocalyptic number.

It is an amenable number.

47728672 is a deficient number, since it is larger than the sum of its proper divisors (46237214).

47728672 is a wasteful number, since it uses less digits than its factorization.

47728672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491531 (or 1491523 counting only the distinct ones).

The product of its digits is 263424, while the sum is 43.

The square root of 47728672 is about 6908.5940682602. The cubic root of 47728672 is about 362.7380524367.

It can be divided in two parts, 47728 and 672, that added together give a square (48400 = 220²).

The spelling of 47728672 in words is "forty-seven million, seven hundred twenty-eight thousand, six hundred seventy-two".