83355381 has 24 divisors (see below), whose sum is σ = 126584640. Its totient is φ = 52753536.

The previous prime is 83355347. The next prime is 83355383. The reversal of 83355381 is 18355338.

It is not a de Polignac number, because 83355381 - 2⁶ = 83355317 is a prime.

It is a super-2 number, since 2×83355381² = 13896239083310322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83355383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27325 + ... + 30221.

It is an arithmetic number, because the mean of its divisors is an integer number (5274360).

Almost surely, 2^83355381 is an apocalyptic number.

It is an amenable number.

83355381 is a deficient number, since it is larger than the sum of its proper divisors (43229259).

83355381 is a wasteful number, since it uses less digits than its factorization.

83355381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065 (or 3062 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 83355381 is about 9129.9168123264. The cubic root of 83355381 is about 436.8287497933.

The spelling of 83355381 in words is "eighty-three million, three hundred fifty-five thousand, three hundred eighty-one".