72908041 has 4 divisors (see below), whose sum is σ = 73142784. Its totient is φ = 72673300.

The previous prime is 72908039. The next prime is 72908047. The reversal of 72908041 is 14080927.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14080927 = 7 ⋅2011561.

It is a cyclic number.

It is not a de Polignac number, because 72908041 - 2¹ = 72908039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72907994 and 72908012.

It is not an unprimeable number, because it can be changed into a prime (72908047) 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, 116905 + ... + 117526.

It is an arithmetic number, because the mean of its divisors is an integer number (18285696).

Almost surely, 2^72908041 is an apocalyptic number.

It is an amenable number.

72908041 is a deficient number, since it is larger than the sum of its proper divisors (234743).

72908041 is a wasteful number, since it uses less digits than its factorization.

72908041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234742.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 72908041 is about 8538.6205560383. The cubic root of 72908041 is about 417.7583537262.

Adding to 72908041 its reverse (14080927), we get a palindrome (86988968).

The spelling of 72908041 in words is "seventy-two million, nine hundred eight thousand, forty-one".