86091233 has 2 divisors, whose sum is σ = 86091234. Its totient is φ = 86091232.

The previous prime is 86091217. The next prime is 86091241. The reversal of 86091233 is 33219068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53919649 + 32171584 = 7343^2 + 5672^2 .

It is a cyclic number.

It is not a de Polignac number, because 86091233 - 2⁴ = 86091217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86091233.

It is not a weakly prime, because it can be changed into another prime (86091293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43045616 + 43045617.

It is an arithmetic number, because the mean of its divisors is an integer number (43045617).

Almost surely, 2^86091233 is an apocalyptic number.

It is an amenable number.

86091233 is a deficient number, since it is larger than the sum of its proper divisors (1).

86091233 is an equidigital number, since it uses as much as digits as its factorization.

86091233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 86091233 is about 9278.5361453195. The cubic root of 86091233 is about 441.5565274831.

The spelling of 86091233 in words is "eighty-six million, ninety-one thousand, two hundred thirty-three".