43027987 has 2 divisors, whose sum is σ = 43027988. Its totient is φ = 43027986.

The previous prime is 43027961. The next prime is 43028033. The reversal of 43027987 is 78972034.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43027987 is a prime.

It is not a weakly prime, because it can be changed into another prime (43027927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21513993 + 21513994.

It is an arithmetic number, because the mean of its divisors is an integer number (21513994).

Almost surely, 2^43027987 is an apocalyptic number.

43027987 is a deficient number, since it is larger than the sum of its proper divisors (1).

43027987 is an equidigital number, since it uses as much as digits as its factorization.

43027987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 43027987 is about 6559.5721659267. The cubic root of 43027987 is about 350.4157969976.

The spelling of 43027987 in words is "forty-three million, twenty-seven thousand, nine hundred eighty-seven".