43116859 has 2 divisors, whose sum is σ = 43116860. Its totient is φ = 43116858.

The previous prime is 43116847. The next prime is 43116889. The reversal of 43116859 is 95861134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43116859 - 2¹⁵ = 43084091 is a prime.

It is a super-3 number, since 3×43116859³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (43116839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21558429 + 21558430.

It is an arithmetic number, because the mean of its divisors is an integer number (21558430).

Almost surely, 2^43116859 is an apocalyptic number.

43116859 is a deficient number, since it is larger than the sum of its proper divisors (1).

43116859 is an equidigital number, since it uses as much as digits as its factorization.

43116859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The square root of 43116859 is about 6566.3428938794. The cubic root of 43116859 is about 350.6568861013.

The spelling of 43116859 in words is "forty-three million, one hundred sixteen thousand, eight hundred fifty-nine".