83333220 has 24 divisors (see below), whose sum is σ = 233333184. Its totient is φ = 22222176.

The previous prime is 83333219. The next prime is 83333231. The reversal of 83333220 is 2233338.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694384 + ... + 694503.

It is an arithmetic number, because the mean of its divisors is an integer number (9722216).

Almost surely, 2^83333220 is an apocalyptic number.

It is an amenable number.

83333220 is an abundant number, since it is smaller than the sum of its proper divisors (149999964).

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

83333220 is a wasteful number, since it uses less digits than its factorization.

83333220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388899 (or 1388897 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 83333220 is about 9128.7030842283. The cubic root of 83333220 is about 436.7900343565.

Adding to 83333220 its reverse (2233338), we get a palindrome (85566558).

The spelling of 83333220 in words is "eighty-three million, three hundred thirty-three thousand, two hundred twenty".