72085441 has 4 divisors (see below), whose sum is σ = 72164800. Its totient is φ = 72006084.

The previous prime is 72085399. The next prime is 72085463. The reversal of 72085441 is 14458027.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72085441 - 2⁷ = 72085313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72083441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38301 + ... + 40138.

It is an arithmetic number, because the mean of its divisors is an integer number (18041200).

Almost surely, 2^72085441 is an apocalyptic number.

It is an amenable number.

72085441 is a deficient number, since it is larger than the sum of its proper divisors (79359).

72085441 is an equidigital number, since it uses as much as digits as its factorization.

72085441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79358.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 72085441 is about 8490.3145406987. The cubic root of 72085441 is about 416.1812592285.

The spelling of 72085441 in words is "seventy-two million, eighty-five thousand, four hundred forty-one".