43689345 has 16 divisors (see below), whose sum is σ = 79889280. Its totient is φ = 19972224.

The previous prime is 43689329. The next prime is 43689377. The reversal of 43689345 is 54398634.

It is not a de Polignac number, because 43689345 - 2⁴ = 43689329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43689297 and 43689306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207940 + ... + 208149.

It is an arithmetic number, because the mean of its divisors is an integer number (4993080).

Almost surely, 2^43689345 is an apocalyptic number.

It is an amenable number.

43689345 is a deficient number, since it is larger than the sum of its proper divisors (36199935).

43689345 is a wasteful number, since it uses less digits than its factorization.

43689345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416104.

The product of its digits is 311040, while the sum is 42.

The square root of 43689345 is about 6609.7916003457. The cubic root of 43689345 is about 352.2020217089.

The spelling of 43689345 in words is "forty-three million, six hundred eighty-nine thousand, three hundred forty-five".