43728803 has 2 divisors, whose sum is σ = 43728804. Its totient is φ = 43728802.

The previous prime is 43728793. The next prime is 43728833. The reversal of 43728803 is 30882734.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43728803 - 2¹⁴ = 43712419 is a prime.

It is a Sophie Germain prime.

It is equal to p_2645936 and since 43728803 and 2645936 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (43728833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21864401 + 21864402.

It is an arithmetic number, because the mean of its divisors is an integer number (21864402).

Almost surely, 2^43728803 is an apocalyptic number.

43728803 is a deficient number, since it is larger than the sum of its proper divisors (1).

43728803 is an equidigital number, since it uses as much as digits as its factorization.

43728803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 43728803 is about 6612.7757409427. The cubic root of 43728803 is about 352.3080201373.

The spelling of 43728803 in words is "forty-three million, seven hundred twenty-eight thousand, eight hundred three".