87109408387 has 8 divisors (see below), whose sum is σ = 90116515440. Its totient is φ = 84102523680.

The previous prime is 87109408369. The next prime is 87109408453. The reversal of 87109408387 is 78380490178.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 87109408387 - 2³¹ = 84961924739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87109408187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1312668 + ... + 1377430.

It is an arithmetic number, because the mean of its divisors is an integer number (11264564430).

Almost surely, 2^87109408387 is an apocalyptic number.

87109408387 is a deficient number, since it is larger than the sum of its proper divisors (3007107053).

87109408387 is a wasteful number, since it uses less digits than its factorization.

87109408387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111173.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 87109408387 in words is "eighty-seven billion, one hundred nine million, four hundred eight thousand, three hundred eighty-seven".