43728747 has 16 divisors (see below), whose sum is σ = 61628160. Its totient is φ = 27503712.

The previous prime is 43728733. The next prime is 43728749. The reversal of 43728747 is 74782734.

It is not a de Polignac number, because 43728747 - 2¹² = 43724651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43728699 and 43728708.

It is not an unprimeable number, because it can be changed into a prime (43728749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13533 + ... + 16449.

It is an arithmetic number, because the mean of its divisors is an integer number (3851760).

Almost surely, 2^43728747 is an apocalyptic number.

43728747 is a deficient number, since it is larger than the sum of its proper divisors (17899413).

43728747 is a wasteful number, since it uses less digits than its factorization.

43728747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202.

The product of its digits is 263424, while the sum is 42.

The square root of 43728747 is about 6612.7715067134. The cubic root of 43728747 is about 352.3078697463.

The spelling of 43728747 in words is "forty-three million, seven hundred twenty-eight thousand, seven hundred forty-seven".