43964485 has 4 divisors (see below), whose sum is σ = 52757388. Its totient is φ = 35171584.

The previous prime is 43964483. The next prime is 43964489. The reversal of 43964485 is 58446934.

It is a happy number.

43964485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22118209 + 21846276 = 4703^2 + 4674^2 .

It is a cyclic number.

It is not a de Polignac number, because 43964485 - 2¹ = 43964483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43964483) 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 3 ways as a sum of consecutive naturals, for example, 4396444 + ... + 4396453.

It is an arithmetic number, because the mean of its divisors is an integer number (13189347).

Almost surely, 2^43964485 is an apocalyptic number.

It is an amenable number.

43964485 is a deficient number, since it is larger than the sum of its proper divisors (8792903).

43964485 is an equidigital number, since it uses as much as digits as its factorization.

43964485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8792902.

The product of its digits is 414720, while the sum is 43.

The square root of 43964485 is about 6630.5719964419. The cubic root of 43964485 is about 352.9398228733.

It can be divided in two parts, 4396 and 4485, that multiplied together give a triangular number (19716060 = T₆₂₇₉).

The spelling of 43964485 in words is "forty-three million, nine hundred sixty-four thousand, four hundred eighty-five".