88617217 has 8 divisors (see below), whose sum is σ = 96132456. Its totient is φ = 81201792.

The previous prime is 88617203. The next prime is 88617227. The reversal of 88617217 is 71271688.

It can be written as a sum of positive squares in 4 ways, for example, as 839056 + 87778161 = 916^2 + 9369^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88617217 is a prime.

It is a super-2 number, since 2×88617217² = 15706022297650178, which contains 22 as substring.

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 88617217.

It is not an unprimeable number, because it can be changed into a prime (88617227) 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, 23098 + ... + 26659.

It is an arithmetic number, because the mean of its divisors is an integer number (12016557).

Almost surely, 2^88617217 is an apocalyptic number.

It is an amenable number.

88617217 is a deficient number, since it is larger than the sum of its proper divisors (7515239).

88617217 is a wasteful number, since it uses less digits than its factorization.

88617217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49907.

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

The square root of 88617217 is about 9413.6718128475. The cubic root of 88617217 is about 445.8335041158.

The spelling of 88617217 in words is "eighty-eight million, six hundred seventeen thousand, two hundred seventeen".