72227359 has 4 divisors (see below), whose sum is σ = 72754704. Its totient is φ = 71700016.

The previous prime is 72227329. The next prime is 72227369. The reversal of 72227359 is 95372227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95372227 = 17 ⋅5610131.

It is a cyclic number.

It is not a de Polignac number, because 72227359 - 2⁷ = 72227231 is a prime.

It is a super-5 number, since 5×72227359⁵ (a number of 40 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72227329) 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 3 ways as a sum of consecutive naturals, for example, 263467 + ... + 263740.

It is an arithmetic number, because the mean of its divisors is an integer number (18188676).

Almost surely, 2^72227359 is an apocalyptic number.

72227359 is a deficient number, since it is larger than the sum of its proper divisors (527345).

72227359 is a wasteful number, since it uses less digits than its factorization.

72227359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527344.

The product of its digits is 52920, while the sum is 37.

The square root of 72227359 is about 8498.6680721158. The cubic root of 72227359 is about 416.4541987339.

The spelling of 72227359 in words is "seventy-two million, two hundred twenty-seven thousand, three hundred fifty-nine".