72827719 has 2 divisors, whose sum is σ = 72827720. Its totient is φ = 72827718.

The previous prime is 72827701. The next prime is 72827749. The reversal of 72827719 is 91772827.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72827719 - 2⁵ = 72827687 is a prime.

It is a super-2 number, since 2×72827719² = 10607753309485922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72827749) 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, 36413859 + 36413860.

It is an arithmetic number, because the mean of its divisors is an integer number (36413860).

Almost surely, 2^72827719 is an apocalyptic number.

72827719 is a deficient number, since it is larger than the sum of its proper divisors (1).

72827719 is an equidigital number, since it uses as much as digits as its factorization.

72827719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98784, while the sum is 43.

The square root of 72827719 is about 8533.9158069435. The cubic root of 72827719 is about 417.6048840676.

The spelling of 72827719 in words is "seventy-two million, eight hundred twenty-seven thousand, seven hundred nineteen".