86511361 has 2 divisors, whose sum is σ = 86511362. Its totient is φ = 86511360.

The previous prime is 86511343. The next prime is 86511401. The reversal of 86511361 is 16311568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69205761 + 17305600 = 8319^2 + 4160^2 .

It is a cyclic number.

It is not a de Polignac number, because 86511361 - 2⁹ = 86510849 is a prime.

It is not a weakly prime, because it can be changed into another prime (86511301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43255680 + 43255681.

It is an arithmetic number, because the mean of its divisors is an integer number (43255681).

Almost surely, 2^86511361 is an apocalyptic number.

It is an amenable number.

86511361 is a deficient number, since it is larger than the sum of its proper divisors (1).

86511361 is an equidigital number, since it uses as much as digits as its factorization.

86511361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 31.

The square root of 86511361 is about 9301.1483699595. The cubic root of 86511361 is about 442.2736322894.

The spelling of 86511361 in words is "eighty-six million, five hundred eleven thousand, three hundred sixty-one".