72788719 has 2 divisors, whose sum is σ = 72788720. Its totient is φ = 72788718.

The previous prime is 72788707. The next prime is 72788741. The reversal of 72788719 is 91788727.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72788719 - 2⁷ = 72788591 is a prime.

It is a super-2 number, since 2×72788719² = 10596395227321922, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72788789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36394359 + 36394360.

It is an arithmetic number, because the mean of its divisors is an integer number (36394360).

Almost surely, 2^72788719 is an apocalyptic number.

72788719 is a deficient number, since it is larger than the sum of its proper divisors (1).

72788719 is an equidigital number, since it uses as much as digits as its factorization.

72788719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 49.

The square root of 72788719 is about 8531.6305006722. The cubic root of 72788719 is about 417.5303268395.

The spelling of 72788719 in words is "seventy-two million, seven hundred eighty-eight thousand, seven hundred nineteen".