86566741 has 2 divisors, whose sum is σ = 86566742. Its totient is φ = 86566740.

The previous prime is 86566729. The next prime is 86566757. The reversal of 86566741 is 14766568.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80460900 + 6105841 = 8970^2 + 2471^2 .

It is a cyclic number.

It is not a de Polignac number, because 86566741 - 2¹⁵ = 86533973 is a prime.

It is a super-2 number, since 2×86566741² = 14987601294722162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86566721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43283370 + 43283371.

It is an arithmetic number, because the mean of its divisors is an integer number (43283371).

Almost surely, 2^86566741 is an apocalyptic number.

It is an amenable number.

86566741 is a deficient number, since it is larger than the sum of its proper divisors (1).

86566741 is an equidigital number, since it uses as much as digits as its factorization.

86566741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The square root of 86566741 is about 9304.1249454207. The cubic root of 86566741 is about 442.3679855586.

The spelling of 86566741 in words is "eighty-six million, five hundred sixty-six thousand, seven hundred forty-one".