83939808 has 24 divisors (see below), whose sum is σ = 220342248. Its totient is φ = 27979904.

The previous prime is 83939803. The next prime is 83939813. The reversal of 83939808 is 80893938.

It is an interprime number because it is at equal distance from previous prime (83939803) and next prime (83939813).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83939803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437091 + ... + 437282.

It is an arithmetic number, because the mean of its divisors is an integer number (9180927).

Almost surely, 2^83939808 is an apocalyptic number.

It is an amenable number.

83939808 is an abundant number, since it is smaller than the sum of its proper divisors (136402440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83939808 is a wasteful number, since it uses less digits than its factorization.

83939808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874386 (or 874378 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 83939808 is about 9161.8670586295. The cubic root of 83939808 is about 437.8472810496.

The spelling of 83939808 in words is "eighty-three million, nine hundred thirty-nine thousand, eight hundred eight".