72417011 has 4 divisors (see below), whose sum is σ = 72448032. Its totient is φ = 72385992.

The previous prime is 72416983. The next prime is 72417019. The reversal of 72417011 is 11071427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11071427 = 863 ⋅12829.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72417011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72417019) 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, 11696 + ... + 16781.

It is an arithmetic number, because the mean of its divisors is an integer number (18112008).

Almost surely, 2^72417011 is an apocalyptic number.

72417011 is a deficient number, since it is larger than the sum of its proper divisors (31021).

72417011 is a wasteful number, since it uses less digits than its factorization.

72417011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31020.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 72417011 is about 8509.8185057027. The cubic root of 72417011 is about 416.8183836478.

Adding to 72417011 its reverse (11071427), we get a palindrome (83488438).

The spelling of 72417011 in words is "seventy-two million, four hundred seventeen thousand, eleven".