43379985 has 16 divisors (see below), whose sum is σ = 75718080. Its totient is φ = 21032640.

The previous prime is 43379977. The next prime is 43379989. The reversal of 43379985 is 58997334.

43379985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43379985 - 2³ = 43379977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43379989) 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 in 15 ways as a sum of consecutive naturals, for example, 131290 + ... + 131619.

It is an arithmetic number, because the mean of its divisors is an integer number (4732380).

Almost surely, 2^43379985 is an apocalyptic number.

It is an amenable number.

43379985 is a deficient number, since it is larger than the sum of its proper divisors (32338095).

43379985 is a wasteful number, since it uses less digits than its factorization.

43379985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262928.

The product of its digits is 816480, while the sum is 48.

The square root of 43379985 is about 6586.3483813111. The cubic root of 43379985 is about 351.3687490828.

The spelling of 43379985 in words is "forty-three million, three hundred seventy-nine thousand, nine hundred eighty-five".