83408819 has 8 divisors (see below), whose sum is σ = 89911920. Its totient is φ = 76918176.

The previous prime is 83408813. The next prime is 83408821. The reversal of 83408819 is 91880438.

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 83408819 - 2²⁴ = 66631603 is a prime.

It is a super-2 number, since 2×83408819² = 13914062173949522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83408813) 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 7 ways as a sum of consecutive naturals, for example, 14537 + ... + 19445.

It is an arithmetic number, because the mean of its divisors is an integer number (11238990).

Almost surely, 2^83408819 is an apocalyptic number.

83408819 is a deficient number, since it is larger than the sum of its proper divisors (6503101).

83408819 is a wasteful number, since it uses less digits than its factorization.

83408819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6229.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 83408819 is about 9132.8428761257. The cubic root of 83408819 is about 436.9220781738.

The spelling of 83408819 in words is "eighty-three million, four hundred eight thousand, eight hundred nineteen".