83500408387 has 8 divisors (see below), whose sum is σ = 91694610432. Its totient is φ = 75406749000.

The previous prime is 83500408331. The next prime is 83500408399. The reversal of 83500408387 is 78380400538.

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

It is a de Polignac number, because none of the positive numbers 2^k-83500408387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83500408487) 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, 25133923 + ... + 25137244.

It is an arithmetic number, because the mean of its divisors is an integer number (11461826304).

Almost surely, 2^83500408387 is an apocalyptic number.

83500408387 is a deficient number, since it is larger than the sum of its proper divisors (8194202045).

83500408387 is a wasteful number, since it uses less digits than its factorization.

83500408387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50271329.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 83500408387 in words is "eighty-three billion, five hundred million, four hundred eight thousand, three hundred eighty-seven".