83309998 has 12 divisors (see below), whose sum is σ = 125888832. Its totient is φ = 41348180.

The previous prime is 83309987. The next prime is 83309999. The reversal of 83309998 is 89990338.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83309999) 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 5 ways as a sum of consecutive naturals, for example, 178161 + ... + 178627.

It is an arithmetic number, because the mean of its divisors is an integer number (10490736).

Almost surely, 2^83309998 is an apocalyptic number.

83309998 is a deficient number, since it is larger than the sum of its proper divisors (42578834).

83309998 is an equidigital number, since it uses as much as digits as its factorization.

83309998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 83309998 is about 9127.4310734182. The cubic root of 83309998 is about 436.7494579793.

The spelling of 83309998 in words is "eighty-three million, three hundred nine thousand, nine hundred ninety-eight".