86358641 has 2 divisors, whose sum is σ = 86358642.
Its totient is φ = 86358640.
The previous prime is 86358631. The next prime is 86358647. The reversal of 86358641 is 14685368.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 83539600 + 2819041 = 9140^2 + 1679^2
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-86358641 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (86358647) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43179320 + 43179321.
It is an arithmetic number, because the mean of its divisors is an integer number (43179321).
Almost surely, 286358641 is an apocalyptic number.
It is an amenable number.
86358641 is a deficient number, since it is larger than the sum of its proper divisors (1).
86358641 is an equidigital number, since it uses as much as digits as its factorization.
86358641 is an evil number, because the sum of its binary digits is even.
The product of its digits is 138240, while the sum is 41.
The square root of 86358641 is about 9292.9350046151.
The cubic root of 86358641 is about 442.0132279027.
The spelling of 86358641 in words is "eighty-six million, three hundred fifty-eight thousand, six hundred forty-one".