72000011 has 12 divisors (see below), whose sum is σ = 77158080. Its totient is φ = 67037040.

The previous prime is 72000007. The next prime is 72000053. The reversal of 72000011 is 11000027.

It is not a de Polignac number, because 72000011 - 2² = 72000007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71999956 and 72000001.

It is not an unprimeable number, because it can be changed into a prime (72000091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254276 + ... + 254558.

It is an arithmetic number, because the mean of its divisors is an integer number (6429840).

Almost surely, 2^72000011 is an apocalyptic number.

72000011 is a deficient number, since it is larger than the sum of its proper divisors (5158069).

72000011 is an equidigital number, since it uses as much as digits as its factorization.

72000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 72000011 is about 8485.2820224198. The cubic root of 72000011 is about 416.0167857964.

Adding to 72000011 its reverse (11000027), we get a palindrome (83000038).

The spelling of 72000011 in words is "seventy-two million, eleven", and thus it is an aban number and an uban number.