72089011 has 4 divisors (see below), whose sum is σ = 72176800. Its totient is φ = 72001224.

The previous prime is 72088999. The next prime is 72089047. The reversal of 72089011 is 11098027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11098027 = 229 ⋅48463.

It is a cyclic number.

It is not a de Polignac number, because 72089011 - 2¹³ = 72080819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72080011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42651 + ... + 44308.

It is an arithmetic number, because the mean of its divisors is an integer number (18044200).

Almost surely, 2^72089011 is an apocalyptic number.

72089011 is a deficient number, since it is larger than the sum of its proper divisors (87789).

72089011 is an equidigital number, since it uses as much as digits as its factorization.

72089011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87788.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 72089011 is about 8490.5247776566. The cubic root of 72089011 is about 416.1881295134.

The spelling of 72089011 in words is "seventy-two million, eighty-nine thousand, eleven".