87323638 has 8 divisors (see below), whose sum is σ = 131115600. Its totient is φ = 43618440.

The previous prime is 87323633. The next prime is 87323641. The reversal of 87323638 is 83632378.

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

It is a self number, because there is not a number n which added to its sum of digits gives 87323638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87323633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19113 + ... + 23236.

It is an arithmetic number, because the mean of its divisors is an integer number (16389450).

Almost surely, 2^87323638 is an apocalyptic number.

87323638 is a deficient number, since it is larger than the sum of its proper divisors (43791962).

87323638 is a wasteful number, since it uses less digits than its factorization.

87323638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43382.

The product of its digits is 145152, while the sum is 40.

The square root of 87323638 is about 9344.7117665555. The cubic root of 87323638 is about 443.6535287741.

The spelling of 87323638 in words is "eighty-seven million, three hundred twenty-three thousand, six hundred thirty-eight".