86355289 has 2 divisors, whose sum is σ = 86355290. Its totient is φ = 86355288.

The previous prime is 86355287. The next prime is 86355329. The reversal of 86355289 is 98255368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68757264 + 17598025 = 8292^2 + 4195^2 .

It is a cyclic number.

It is not a de Polignac number, because 86355289 - 2¹ = 86355287 is a prime.

Together with 86355287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (86355287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43177644 + 43177645.

It is an arithmetic number, because the mean of its divisors is an integer number (43177645).

Almost surely, 2^86355289 is an apocalyptic number.

It is an amenable number.

86355289 is a deficient number, since it is larger than the sum of its proper divisors (1).

86355289 is an equidigital number, since it uses as much as digits as its factorization.

86355289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 46.

The square root of 86355289 is about 9292.7546508019. The cubic root of 86355289 is about 442.0075089324.

It can be divided in two parts, 8635 and 5289, that added together give a square (13924 = 118²).

The spelling of 86355289 in words is "eighty-six million, three hundred fifty-five thousand, two hundred eighty-nine".