87109408397 has 8 divisors (see below), whose sum is σ = 97346212992. Its totient is φ = 77258898400.

The previous prime is 87109408369. The next prime is 87109408453. The reversal of 87109408397 is 79380490178.

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 87109408397 - 2¹⁸ = 87109146253 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 (87109438397) 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, 96573173 + ... + 96574074.

It is an arithmetic number, because the mean of its divisors is an integer number (12168276624).

Almost surely, 2^87109408397 is an apocalyptic number.

It is an amenable number.

87109408397 is a deficient number, since it is larger than the sum of its proper divisors (10236804595).

87109408397 is a wasteful number, since it uses less digits than its factorization.

87109408397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193147299.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The spelling of 87109408397 in words is "eighty-seven billion, one hundred nine million, four hundred eight thousand, three hundred ninety-seven".