86561653 has 2 divisors, whose sum is σ = 86561654. Its totient is φ = 86561652.

The previous prime is 86561647. The next prime is 86561659. The reversal of 86561653 is 35616568.

It is a balanced prime because it is at equal distance from previous prime (86561647) and next prime (86561659).

It can be written as a sum of positive squares in only one way, i.e., 69105969 + 17455684 = 8313^2 + 4178^2 .

It is a cyclic number.

It is not a de Polignac number, because 86561653 - 2¹⁷ = 86430581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86561659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43280826 + 43280827.

It is an arithmetic number, because the mean of its divisors is an integer number (43280827).

Almost surely, 2^86561653 is an apocalyptic number.

It is an amenable number.

86561653 is a deficient number, since it is larger than the sum of its proper divisors (1).

86561653 is an equidigital number, since it uses as much as digits as its factorization.

86561653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 40.

The square root of 86561653 is about 9303.8515142923. The cubic root of 86561653 is about 442.3593185949.

The spelling of 86561653 in words is "eighty-six million, five hundred sixty-one thousand, six hundred fifty-three".