82449549 has 64 divisors (see below), whose sum is σ = 156979200. Its totient is φ = 41570496.

The previous prime is 82449539. The next prime is 82449557. The reversal of 82449549 is 94594428.

It is not a de Polignac number, because 82449549 - 2⁸ = 82449293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82449529) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55782 + ... + 57240.

It is an arithmetic number, because the mean of its divisors is an integer number (2452800).

Almost surely, 2^82449549 is an apocalyptic number.

It is an amenable number.

82449549 is a deficient number, since it is larger than the sum of its proper divisors (74529651).

82449549 is a wasteful number, since it uses less digits than its factorization.

82449549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511 (or 1505 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 82449549 is about 9080.1734014280. The cubic root of 82449549 is about 435.2406278667.

The spelling of 82449549 in words is "eighty-two million, four hundred forty-nine thousand, five hundred forty-nine".