72722827 has 2 divisors, whose sum is σ = 72722828. Its totient is φ = 72722826.

The previous prime is 72722809. The next prime is 72722831. The reversal of 72722827 is 72822727.

It is a strong prime.

It is an emirp because it is prime and its reverse (72822727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72722827 - 2²³ = 64334219 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72722887) 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, 36361413 + 36361414.

It is an arithmetic number, because the mean of its divisors is an integer number (36361414).

Almost surely, 2^72722827 is an apocalyptic number.

72722827 is a deficient number, since it is larger than the sum of its proper divisors (1).

72722827 is an equidigital number, since it uses as much as digits as its factorization.

72722827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43904, while the sum is 37.

The square root of 72722827 is about 8527.7679963751. The cubic root of 72722827 is about 417.4042990037.

The spelling of 72722827 in words is "seventy-two million, seven hundred twenty-two thousand, eight hundred twenty-seven".