86345563 has 2 divisors, whose sum is σ = 86345564. Its totient is φ = 86345562.

The previous prime is 86345551. The next prime is 86345569. The reversal of 86345563 is 36554368.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86345563 is a prime.

It is not a weakly prime, because it can be changed into another prime (86345569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43172781 + 43172782.

It is an arithmetic number, because the mean of its divisors is an integer number (43172782).

Almost surely, 2^86345563 is an apocalyptic number.

86345563 is a deficient number, since it is larger than the sum of its proper divisors (1).

86345563 is an equidigital number, since it uses as much as digits as its factorization.

86345563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 40.

The square root of 86345563 is about 9292.2313251447. The cubic root of 86345563 is about 441.9909142089.

It can be divided in two parts, 863455 and 63, that multiplied together give a triangular number (54397665 = T₁₀₄₃₀).

The spelling of 86345563 in words is "eighty-six million, three hundred forty-five thousand, five hundred sixty-three".