86764577 has 2 divisors, whose sum is σ = 86764578. Its totient is φ = 86764576.

The previous prime is 86764571. The next prime is 86764591. The reversal of 86764577 is 77546768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43612816 + 43151761 = 6604^2 + 6569^2 .

It is a cyclic number.

It is not a de Polignac number, because 86764577 - 2¹⁰ = 86763553 is a prime.

It is not a weakly prime, because it can be changed into another prime (86764571) 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, 43382288 + 43382289.

It is an arithmetic number, because the mean of its divisors is an integer number (43382289).

Almost surely, 2^86764577 is an apocalyptic number.

It is an amenable number.

86764577 is a deficient number, since it is larger than the sum of its proper divisors (1).

86764577 is an equidigital number, since it uses as much as digits as its factorization.

86764577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1975680, while the sum is 50.

The square root of 86764577 is about 9314.7505065890. The cubic root of 86764577 is about 442.7047189183.

The spelling of 86764577 in words is "eighty-six million, seven hundred sixty-four thousand, five hundred seventy-seven".