86959693 has 2 divisors, whose sum is σ = 86959694. Its totient is φ = 86959692.

The previous prime is 86959673. The next prime is 86959699. The reversal of 86959693 is 39695968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46280809 + 40678884 = 6803^2 + 6378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86959693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86959699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43479846 + 43479847.

It is an arithmetic number, because the mean of its divisors is an integer number (43479847).

Almost surely, 2^86959693 is an apocalyptic number.

It is an amenable number.

86959693 is a deficient number, since it is larger than the sum of its proper divisors (1).

86959693 is an equidigital number, since it uses as much as digits as its factorization.

86959693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3149280, while the sum is 55.

The square root of 86959693 is about 9325.2181207734. The cubic root of 86959693 is about 443.0363216231.

The spelling of 86959693 in words is "eighty-six million, nine hundred fifty-nine thousand, six hundred ninety-three".