87324309 has 12 divisors (see below), whose sum is σ = 127732800. Its totient is φ = 57478824.

The previous prime is 87324287. The next prime is 87324317. The reversal of 87324309 is 90342378.

It is not a de Polignac number, because 87324309 - 2¹⁷ = 87193237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87324379) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60699 + ... + 62120.

It is an arithmetic number, because the mean of its divisors is an integer number (10644400).

Almost surely, 2^87324309 is an apocalyptic number.

It is an amenable number.

87324309 is a deficient number, since it is larger than the sum of its proper divisors (40408491).

87324309 is a wasteful number, since it uses less digits than its factorization.

87324309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122904 (or 122901 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 87324309 is about 9344.7476691455. The cubic root of 87324309 is about 443.6546651245.

It can be divided in two parts, 8732 and 4309, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 87324309 in words is "eighty-seven million, three hundred twenty-four thousand, three hundred nine".