83390911 has 4 divisors (see below), whose sum is σ = 83494800. Its totient is φ = 83287024.

The previous prime is 83390897. The next prime is 83390927. The reversal of 83390911 is 11909338.

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

It is a cyclic number.

It is not a de Polignac number, because 83390911 - 2²³ = 75002303 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 (83390011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50731 + ... + 52348.

It is an arithmetic number, because the mean of its divisors is an integer number (20873700).

Almost surely, 2^83390911 is an apocalyptic number.

83390911 is a deficient number, since it is larger than the sum of its proper divisors (103889).

83390911 is a wasteful number, since it uses less digits than its factorization.

83390911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103888.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 83390911 is about 9131.8624058841. The cubic root of 83390911 is about 436.8908066580.

The spelling of 83390911 in words is "eighty-three million, three hundred ninety thousand, nine hundred eleven".