72844841 has 8 divisors (see below), whose sum is σ = 80013120. Its totient is φ = 66010032.

The previous prime is 72844819. The next prime is 72844853. The reversal of 72844841 is 14844827.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72844841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72844795 and 72844804.

It is not an unprimeable number, because it can be changed into a prime (72844801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82910 + ... + 83783.

It is an arithmetic number, because the mean of its divisors is an integer number (10001640).

Almost surely, 2^72844841 is an apocalyptic number.

It is an amenable number.

72844841 is a deficient number, since it is larger than the sum of its proper divisors (7168279).

72844841 is a wasteful number, since it uses less digits than its factorization.

72844841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166735.

The product of its digits is 57344, while the sum is 38.

The square root of 72844841 is about 8534.9189217004. The cubic root of 72844841 is about 417.6376081945.

The spelling of 72844841 in words is "seventy-two million, eight hundred forty-four thousand, eight hundred forty-one".