86793617 has 2 divisors, whose sum is σ = 86793618. Its totient is φ = 86793616.

The previous prime is 86793611. The next prime is 86793659. The reversal of 86793617 is 71639768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60824401 + 25969216 = 7799^2 + 5096^2 .

It is a cyclic number.

It is not a de Polignac number, because 86793617 - 2⁸ = 86793361 is a prime.

It is not a weakly prime, because it can be changed into another prime (86793611) 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, 43396808 + 43396809.

It is an arithmetic number, because the mean of its divisors is an integer number (43396809).

Almost surely, 2^86793617 is an apocalyptic number.

It is an amenable number.

86793617 is a deficient number, since it is larger than the sum of its proper divisors (1).

86793617 is an equidigital number, since it uses as much as digits as its factorization.

86793617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The square root of 86793617 is about 9316.3091940961. The cubic root of 86793617 is about 442.7541043221.

The spelling of 86793617 in words is "eighty-six million, seven hundred ninety-three thousand, six hundred seventeen".