72270719 has 2 divisors, whose sum is σ = 72270720. Its totient is φ = 72270718.

The previous prime is 72270707. The next prime is 72270743. The reversal of 72270719 is 91707227.

It is a weak prime.

It is an emirp because it is prime and its reverse (91707227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72270719 - 2⁸ = 72270463 is a prime.

It is a super-2 number, since 2×72270719² = 10446113649553922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72270769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36135359 + 36135360.

It is an arithmetic number, because the mean of its divisors is an integer number (36135360).

Almost surely, 2^72270719 is an apocalyptic number.

72270719 is a deficient number, since it is larger than the sum of its proper divisors (1).

72270719 is an equidigital number, since it uses as much as digits as its factorization.

72270719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 72270719 is about 8501.2186773427. The cubic root of 72270719 is about 416.5375182315.

The spelling of 72270719 in words is "seventy-two million, two hundred seventy thousand, seven hundred nineteen".