88690117 has 2 divisors, whose sum is σ = 88690118. Its totient is φ = 88690116.

The previous prime is 88690099. The next prime is 88690141. The reversal of 88690117 is 71109688.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49364676 + 39325441 = 7026^2 + 6271^2 .

It is a cyclic number.

It is not a de Polignac number, because 88690117 - 2⁷ = 88689989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88690117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88690177) 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 as a sum of consecutive naturals, namely, 44345058 + 44345059.

It is an arithmetic number, because the mean of its divisors is an integer number (44345059).

Almost surely, 2^88690117 is an apocalyptic number.

It is an amenable number.

88690117 is a deficient number, since it is larger than the sum of its proper divisors (1).

88690117 is an equidigital number, since it uses as much as digits as its factorization.

88690117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 88690117 is about 9417.5430447649. The cubic root of 88690117 is about 445.9557239859.

The spelling of 88690117 in words is "eighty-eight million, six hundred ninety thousand, one hundred seventeen".