83335420 has 24 divisors (see below), whose sum is σ = 200005344. Its totient is φ = 28572096.

The previous prime is 83335397. The next prime is 83335423. The reversal of 83335420 is 2453338.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83335423) 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, 297487 + ... + 297766.

It is an arithmetic number, because the mean of its divisors is an integer number (8333556).

Almost surely, 2^83335420 is an apocalyptic number.

It is an amenable number.

83335420 is an abundant number, since it is smaller than the sum of its proper divisors (116669924).

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

83335420 is a wasteful number, since it uses less digits than its factorization.

83335420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595269 (or 595267 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 83335420 is about 9128.8235824776. The cubic root of 83335420 is about 436.7938780802.

Adding to 83335420 its reverse (2453338), we get a palindrome (85788758).

The spelling of 83335420 in words is "eighty-three million, three hundred thirty-five thousand, four hundred twenty".