83449771 has 2 divisors, whose sum is σ = 83449772. Its totient is φ = 83449770.

The previous prime is 83449747. The next prime is 83449781. The reversal of 83449771 is 17794438.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83449771 - 2⁹ = 83449259 is a prime.

It is a super-3 number, since 3×83449771³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (83449711) 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, 41724885 + 41724886.

It is an arithmetic number, because the mean of its divisors is an integer number (41724886).

Almost surely, 2^83449771 is an apocalyptic number.

83449771 is a deficient number, since it is larger than the sum of its proper divisors (1).

83449771 is an equidigital number, since it uses as much as digits as its factorization.

83449771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 43.

The square root of 83449771 is about 9135.0846192030. The cubic root of 83449771 is about 436.9935730334.

It can be divided in two parts, 834 and 49771, that added together give a palindrome (50605).

The spelling of 83449771 in words is "eighty-three million, four hundred forty-nine thousand, seven hundred seventy-one".