43371689 has 2 divisors, whose sum is σ = 43371690. Its totient is φ = 43371688.

The previous prime is 43371613. The next prime is 43371703. The reversal of 43371689 is 98617334.

43371689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31866025 + 11505664 = 5645^2 + 3392^2 .

It is a cyclic number.

It is not a de Polignac number, because 43371689 - 2¹² = 43367593 is a prime.

It is a super-2 number, since 2×43371689² = 3762206813425442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43371089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21685844 + 21685845.

It is an arithmetic number, because the mean of its divisors is an integer number (21685845).

Almost surely, 2^43371689 is an apocalyptic number.

It is an amenable number.

43371689 is a deficient number, since it is larger than the sum of its proper divisors (1).

43371689 is an equidigital number, since it uses as much as digits as its factorization.

43371689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 43371689 is about 6585.7185636800. The cubic root of 43371689 is about 351.3463490368.

The spelling of 43371689 in words is "forty-three million, three hundred seventy-one thousand, six hundred eighty-nine".