72726611 has 2 divisors, whose sum is σ = 72726612. Its totient is φ = 72726610.

The previous prime is 72726553. The next prime is 72726613. The reversal of 72726611 is 11662727.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72726611 is a prime.

Together with 72726613, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72726613) 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 as a sum of consecutive naturals, namely, 36363305 + 36363306.

It is an arithmetic number, because the mean of its divisors is an integer number (36363306).

Almost surely, 2^72726611 is an apocalyptic number.

72726611 is a deficient number, since it is larger than the sum of its proper divisors (1).

72726611 is an equidigital number, since it uses as much as digits as its factorization.

72726611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 32.

The square root of 72726611 is about 8527.9898569358. The cubic root of 72726611 is about 417.4115385026.

It can be divided in two parts, 72726 and 611, that added together give a palindrome (73337).

The spelling of 72726611 in words is "seventy-two million, seven hundred twenty-six thousand, six hundred eleven".