72039841 has 8 divisors (see below), whose sum is σ = 76405824. Its totient is φ = 67776720.

The previous prime is 72039827. The next prime is 72039859. The reversal of 72039841 is 14893027.

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

It is a cyclic number.

It is not a de Polignac number, because 72039841 - 2⁵ = 72039809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72039797 and 72039806.

It is not an unprimeable number, because it can be changed into a prime (72039871) 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 7 ways as a sum of consecutive naturals, for example, 24271 + ... + 27076.

It is an arithmetic number, because the mean of its divisors is an integer number (9550728).

Almost surely, 2^72039841 is an apocalyptic number.

It is an amenable number.

72039841 is a deficient number, since it is larger than the sum of its proper divisors (4365983).

72039841 is a wasteful number, since it uses less digits than its factorization.

72039841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51431.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 72039841 is about 8487.6287030006. The cubic root of 72039841 is about 416.0934843683.

The spelling of 72039841 in words is "seventy-two million, thirty-nine thousand, eight hundred forty-one".