43072085 has 8 divisors (see below), whose sum is σ = 59070336. Its totient is φ = 29535120.

The previous prime is 43072049. The next prime is 43072091. The reversal of 43072085 is 58027034.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-43072085 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615281 + ... + 615350.

It is an arithmetic number, because the mean of its divisors is an integer number (7383792).

Almost surely, 2^43072085 is an apocalyptic number.

It is an amenable number.

43072085 is a deficient number, since it is larger than the sum of its proper divisors (15998251).

43072085 is a wasteful number, since it uses less digits than its factorization.

43072085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230643.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 43072085 is about 6562.9326524047. The cubic root of 43072085 is about 350.5354660853.

The spelling of 43072085 in words is "forty-three million, seventy-two thousand, eighty-five".