86289193 has 2 divisors, whose sum is σ = 86289194. Its totient is φ = 86289192.

The previous prime is 86289191. The next prime is 86289221. The reversal of 86289193 is 39198268.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82301184 + 3988009 = 9072^2 + 1997^2 .

It is a cyclic number.

It is not a de Polignac number, because 86289193 - 2¹ = 86289191 is a prime.

Together with 86289191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (86289191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43144596 + 43144597.

It is an arithmetic number, because the mean of its divisors is an integer number (43144597).

Almost surely, 2^86289193 is an apocalyptic number.

It is an amenable number.

86289193 is a deficient number, since it is larger than the sum of its proper divisors (1).

86289193 is an equidigital number, since it uses as much as digits as its factorization.

86289193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 46.

The square root of 86289193 is about 9289.1976510353. The cubic root of 86289193 is about 441.8947098768.

The spelling of 86289193 in words is "eighty-six million, two hundred eighty-nine thousand, one hundred ninety-three".