43678871 has 2 divisors, whose sum is σ = 43678872. Its totient is φ = 43678870.

The previous prime is 43678847. The next prime is 43678883. The reversal of 43678871 is 17887634.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43678871 - 2¹⁸ = 43416727 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43674871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21839435 + 21839436.

It is an arithmetic number, because the mean of its divisors is an integer number (21839436).

Almost surely, 2^43678871 is an apocalyptic number.

43678871 is a deficient number, since it is larger than the sum of its proper divisors (1).

43678871 is an equidigital number, since it uses as much as digits as its factorization.

43678871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 44.

The square root of 43678871 is about 6608.9992434559. Note that the first 3 decimals coincide. The cubic root of 43678871 is about 352.1738740465.

The spelling of 43678871 in words is "forty-three million, six hundred seventy-eight thousand, eight hundred seventy-one".