83939020 has 24 divisors (see below), whose sum is σ = 192297168. Its totient is φ = 30523200.

The previous prime is 83938997. The next prime is 83939057. The reversal of 83939020 is 2093938.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190551 + ... + 190990.

It is an arithmetic number, because the mean of its divisors is an integer number (8012382).

Almost surely, 2^83939020 is an apocalyptic number.

It is an amenable number.

83939020 is an abundant number, since it is smaller than the sum of its proper divisors (108358148).

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

83939020 is a wasteful number, since it uses less digits than its factorization.

83939020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381561 (or 381559 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 83939020 is about 9161.8240541936. The cubic root of 83939020 is about 437.8459109220.

The spelling of 83939020 in words is "eighty-three million, nine hundred thirty-nine thousand, twenty".