72284841 has 12 divisors (see below), whose sum is σ = 105078532. Its totient is φ = 47882016.

The previous prime is 72284831. The next prime is 72284881. The reversal of 72284841 is 14848227.

It can be written as a sum of positive squares in 2 ways, for example, as 53231616 + 19053225 = 7296^2 + 4365^2 .

It is not a de Polignac number, because 72284841 - 2⁵ = 72284809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72284796 and 72284805.

It is not an unprimeable number, because it can be changed into a prime (72284831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24166 + ... + 26991.

Almost surely, 2^72284841 is an apocalyptic number.

It is an amenable number.

72284841 is a deficient number, since it is larger than the sum of its proper divisors (32793691).

72284841 is a wasteful number, since it uses less digits than its factorization.

72284841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51320 (or 51317 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 72284841 is about 8502.0492235696. The cubic root of 72284841 is about 416.5646475208.

The spelling of 72284841 in words is "seventy-two million, two hundred eighty-four thousand, eight hundred forty-one".