87324013 has 8 divisors (see below), whose sum is σ = 102120128. Its totient is φ = 73108224.

The previous prime is 87324011. The next prime is 87324037. The reversal of 87324013 is 31042378.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87324013 - 2¹ = 87324011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87324011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144756 + ... + 145357.

It is an arithmetic number, because the mean of its divisors is an integer number (12765016).

Almost surely, 2^87324013 is an apocalyptic number.

It is an amenable number.

87324013 is a deficient number, since it is larger than the sum of its proper divisors (14796115).

87324013 is a wasteful number, since it uses less digits than its factorization.

87324013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290163.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 87324013 is about 9344.7318313582. The cubic root of 87324013 is about 443.6541638440.

The spelling of 87324013 in words is "eighty-seven million, three hundred twenty-four thousand, thirteen".