88216717 has 4 divisors (see below), whose sum is σ = 88248700. Its totient is φ = 88184736.

The previous prime is 88216699. The next prime is 88216721. The reversal of 88216717 is 71761288.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25948836 + 62267881 = 5094^2 + 7891^2 .

It is a cyclic number.

It is not a de Polignac number, because 88216717 - 2⁷ = 88216589 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 88216717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88216517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11418 + ... + 17515.

It is an arithmetic number, because the mean of its divisors is an integer number (22062175).

Almost surely, 2^88216717 is an apocalyptic number.

It is an amenable number.

88216717 is a deficient number, since it is larger than the sum of its proper divisors (31983).

88216717 is a wasteful number, since it uses less digits than its factorization.

88216717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31982.

The product of its digits is 37632, while the sum is 40.

The square root of 88216717 is about 9392.3754716259. The cubic root of 88216717 is about 445.1608508276.

The spelling of 88216717 in words is "eighty-eight million, two hundred sixteen thousand, seven hundred seventeen".