86276609 has 2 divisors, whose sum is σ = 86276610. Its totient is φ = 86276608.

The previous prime is 86276599. The next prime is 86276621. The reversal of 86276609 is 90667268.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68425984 + 17850625 = 8272^2 + 4225^2 .

It is a cyclic number.

It is not a de Polignac number, because 86276609 - 2¹² = 86272513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86276609.

It is not a weakly prime, because it can be changed into another prime (86276909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43138304 + 43138305.

It is an arithmetic number, because the mean of its divisors is an integer number (43138305).

Almost surely, 2^86276609 is an apocalyptic number.

It is an amenable number.

86276609 is a deficient number, since it is larger than the sum of its proper divisors (1).

86276609 is an equidigital number, since it uses as much as digits as its factorization.

86276609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 86276609 is about 9288.5202804322. The cubic root of 86276609 is about 441.8732275676.

The spelling of 86276609 in words is "eighty-six million, two hundred seventy-six thousand, six hundred nine".