82419549 has 12 divisors (see below), whose sum is σ = 115982496. Its totient is φ = 52053768.

The previous prime is 82419527. The next prime is 82419551. The reversal of 82419549 is 94591428.

It is not a de Polignac number, because 82419549 - 2²¹ = 80322397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82419549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82415549) 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 11 ways as a sum of consecutive naturals, for example, 36969 + ... + 39134.

It is an arithmetic number, because the mean of its divisors is an integer number (9665208).

Almost surely, 2^82419549 is an apocalyptic number.

It is an amenable number.

82419549 is a deficient number, since it is larger than the sum of its proper divisors (33562947).

82419549 is a wasteful number, since it uses less digits than its factorization.

82419549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76144 (or 76125 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 82419549 is about 9078.5213003000. The cubic root of 82419549 is about 435.1878327414.

The spelling of 82419549 in words is "eighty-two million, four hundred nineteen thousand, five hundred forty-nine".