83384855 has 4 divisors (see below), whose sum is σ = 100061832. Its totient is φ = 66707880.

The previous prime is 83384839. The next prime is 83384887. The reversal of 83384855 is 55848338.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 83384855 - 2⁴ = 83384839 is a prime.

It is a super-3 number, since 3×83384855³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8338481 + ... + 8338490.

It is an arithmetic number, because the mean of its divisors is an integer number (25015458).

Almost surely, 2^83384855 is an apocalyptic number.

83384855 is a deficient number, since it is larger than the sum of its proper divisors (16676977).

83384855 is a wasteful number, since it uses less digits than its factorization.

83384855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16676976.

The product of its digits is 460800, while the sum is 44.

The square root of 83384855 is about 9131.5308136150. The cubic root of 83384855 is about 436.8802304663.

The spelling of 83384855 in words is "eighty-three million, three hundred eighty-four thousand, eight hundred fifty-five".