87326609 has 2 divisors, whose sum is σ = 87326610. Its totient is φ = 87326608.

The previous prime is 87326587. The next prime is 87326621. The reversal of 87326609 is 90662378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78712384 + 8614225 = 8872^2 + 2935^2 .

It is a cyclic number.

It is not a de Polignac number, because 87326609 - 2²⁴ = 70549393 is a prime.

It is not a weakly prime, because it can be changed into another prime (87326639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43663304 + 43663305.

It is an arithmetic number, because the mean of its divisors is an integer number (43663305).

Almost surely, 2^87326609 is an apocalyptic number.

It is an amenable number.

87326609 is a deficient number, since it is larger than the sum of its proper divisors (1).

87326609 is an equidigital number, since it uses as much as digits as its factorization.

87326609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 87326609 is about 9344.8707321182. The cubic root of 87326609 is about 443.6585601712.

The spelling of 87326609 in words is "eighty-seven million, three hundred twenty-six thousand, six hundred nine".