83088905 has 4 divisors (see below), whose sum is σ = 99706692. Its totient is φ = 66471120.

The previous prime is 83088883. The next prime is 83088913. The reversal of 83088905 is 50988038.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50988038 = 2 ⋅25494019.

It can be written as a sum of positive squares in 2 ways, for example, as 39476089 + 43612816 = 6283^2 + 6604^2 .

It is not a de Polignac number, because 83088905 - 2¹⁰ = 83087881 is a prime.

It is a super-2 number, since 2×83088905² = 13807532268198050, which contains 22 as substring.

It is a Duffinian 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, 8308886 + ... + 8308895.

It is an arithmetic number, because the mean of its divisors is an integer number (24926673).

Almost surely, 2^83088905 is an apocalyptic number.

It is an amenable number.

83088905 is a deficient number, since it is larger than the sum of its proper divisors (16617787).

83088905 is a wasteful number, since it uses less digits than its factorization.

83088905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16617786.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 83088905 is about 9115.3115690030. The cubic root of 83088905 is about 436.3627585144.

The spelling of 83088905 in words is "eighty-three million, eighty-eight thousand, nine hundred five".