72036911 has 16 divisors (see below), whose sum is σ = 76307616. Its totient is φ = 67931136.

The previous prime is 72036893. The next prime is 72036917. The reversal of 72036911 is 11963027.

It is a cyclic number.

It is not a de Polignac number, because 72036911 - 2¹⁸ = 71774767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72036917) 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 15 ways as a sum of consecutive naturals, for example, 166151 + ... + 166583.

It is an arithmetic number, because the mean of its divisors is an integer number (4769226).

Almost surely, 2^72036911 is an apocalyptic number.

72036911 is a deficient number, since it is larger than the sum of its proper divisors (4270705).

72036911 is a wasteful number, since it uses less digits than its factorization.

72036911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 72036911 is about 8487.4560970882. The cubic root of 72036911 is about 416.0878431822.

Adding to 72036911 its reverse (11963027), we get a palindrome (83999938).

The spelling of 72036911 in words is "seventy-two million, thirty-six thousand, nine hundred eleven".