86209427 has 2 divisors, whose sum is σ = 86209428. Its totient is φ = 86209426.

The previous prime is 86209411. The next prime is 86209439. The reversal of 86209427 is 72490268.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86209427 - 2⁴ = 86209411 is a prime.

It is not a weakly prime, because it can be changed into another prime (86209447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43104713 + 43104714.

It is an arithmetic number, because the mean of its divisors is an integer number (43104714).

Almost surely, 2^86209427 is an apocalyptic number.

86209427 is a deficient number, since it is larger than the sum of its proper divisors (1).

86209427 is an equidigital number, since it uses as much as digits as its factorization.

86209427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 86209427 is about 9284.9031766626. The cubic root of 86209427 is about 441.7585049479.

The spelling of 86209427 in words is "eighty-six million, two hundred nine thousand, four hundred twenty-seven".