87327209 has 2 divisors, whose sum is σ = 87327210. Its totient is φ = 87327208.

The previous prime is 87327179. The next prime is 87327221. The reversal of 87327209 is 90272378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85969984 + 1357225 = 9272^2 + 1165^2 .

It is a cyclic number.

It is not a de Polignac number, because 87327209 - 2¹⁶ = 87261673 is a prime.

It is not a weakly prime, because it can be changed into another prime (87327259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43663604 + 43663605.

It is an arithmetic number, because the mean of its divisors is an integer number (43663605).

Almost surely, 2^87327209 is an apocalyptic number.

It is an amenable number.

87327209 is a deficient number, since it is larger than the sum of its proper divisors (1).

87327209 is an equidigital number, since it uses as much as digits as its factorization.

87327209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 87327209 is about 9344.9028352359. The cubic root of 87327209 is about 443.6595762590.

It can be divided in two parts, 873 and 27209, that added together give a palindrome (28082).

The spelling of 87327209 in words is "eighty-seven million, three hundred twenty-seven thousand, two hundred nine".