72227719 has 8 divisors (see below), whose sum is σ = 74916720. Its totient is φ = 69552000.

The previous prime is 72227717. The next prime is 72227783. The reversal of 72227719 is 91772227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72227719 - 2¹ = 72227717 is a prime.

It is a super-2 number, since 2×72227719² = 10433686783885922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72227717) 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 in 7 ways as a sum of consecutive naturals, for example, 8524 + ... + 14734.

It is an arithmetic number, because the mean of its divisors is an integer number (9364590).

Almost surely, 2^72227719 is an apocalyptic number.

72227719 is a deficient number, since it is larger than the sum of its proper divisors (2689001).

72227719 is a wasteful number, since it uses less digits than its factorization.

72227719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641.

The product of its digits is 24696, while the sum is 37.

The square root of 72227719 is about 8498.6892518788. The cubic root of 72227719 is about 416.4548906382.

It can be divided in two parts, 7222 and 7719, that added together give a palindrome (14941).

The spelling of 72227719 in words is "seventy-two million, two hundred twenty-seven thousand, seven hundred nineteen".