72088717 has 8 divisors (see below), whose sum is σ = 77016800. Its totient is φ = 67274064.

The previous prime is 72088699. The next prime is 72088727. The reversal of 72088717 is 71788027.

It is a happy number.

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 72088717 - 2⁷ = 72088589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72088717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72088727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27042 + ... + 29587.

It is an arithmetic number, because the mean of its divisors is an integer number (9627100).

Almost surely, 2^72088717 is an apocalyptic number.

It is an amenable number.

72088717 is a deficient number, since it is larger than the sum of its proper divisors (4928083).

72088717 is a wasteful number, since it uses less digits than its factorization.

72088717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56715.

The product of its (nonzero) digits is 43904, while the sum is 40.

The square root of 72088717 is about 8490.5074642214. The cubic root of 72088717 is about 416.1875637338.

The spelling of 72088717 in words is "seventy-two million, eighty-eight thousand, seven hundred seventeen".