86911673 has 2 divisors, whose sum is σ = 86911674. Its totient is φ = 86911672.

The previous prime is 86911639. The next prime is 86911697. The reversal of 86911673 is 37611968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75568249 + 11343424 = 8693^2 + 3368^2 .

It is a cyclic number.

It is not a de Polignac number, because 86911673 - 2⁶ = 86911609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86911673.

It is not a weakly prime, because it can be changed into another prime (86911603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43455836 + 43455837.

It is an arithmetic number, because the mean of its divisors is an integer number (43455837).

Almost surely, 2^86911673 is an apocalyptic number.

It is an amenable number.

86911673 is a deficient number, since it is larger than the sum of its proper divisors (1).

86911673 is an equidigital number, since it uses as much as digits as its factorization.

86911673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 41.

The square root of 86911673 is about 9322.6430265242. The cubic root of 86911673 is about 442.9547569325.

The spelling of 86911673 in words is "eighty-six million, nine hundred eleven thousand, six hundred seventy-three".