83341991 has 2 divisors, whose sum is σ = 83341992. Its totient is φ = 83341990.

The previous prime is 83341967. The next prime is 83341997. The reversal of 83341991 is 19914338.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83341991 - 2¹⁴ = 83325607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83341997) 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 as a sum of consecutive naturals, namely, 41670995 + 41670996.

It is an arithmetic number, because the mean of its divisors is an integer number (41670996).

Almost surely, 2^83341991 is an apocalyptic number.

83341991 is a deficient number, since it is larger than the sum of its proper divisors (1).

83341991 is an equidigital number, since it uses as much as digits as its factorization.

83341991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 38.

The square root of 83341991 is about 9129.1834793699. The cubic root of 83341991 is about 436.8053581813.

It can be divided in two parts, 833 and 41991, that added together give a palindrome (42824).

The spelling of 83341991 in words is "eighty-three million, three hundred forty-one thousand, nine hundred ninety-one".