82998549 has 6 divisors (see below), whose sum is σ = 119886806. Its totient is φ = 55332360.

The previous prime is 82998529. The next prime is 82998599. The reversal of 82998549 is 94589928.

82998549 is a `hidden beast` number, since 8 + 2 + 9 + 98 + 549 = 666.

It can be written as a sum of positive squares in only one way, i.e., 80460900 + 2537649 = 8970^2 + 1593^2 .

It is not a de Polignac number, because 82998549 - 2⁹ = 82998037 is a prime.

It is a super-2 number, since 2×82998549² = 13777518272210802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82998495 and 82998504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82998529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4611022 + ... + 4611039.

Almost surely, 2^82998549 is an apocalyptic number.

It is an amenable number.

82998549 is a deficient number, since it is larger than the sum of its proper divisors (36888257).

82998549 is a wasteful number, since it uses less digits than its factorization.

82998549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9222067 (or 9222064 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The square root of 82998549 is about 9110.3539448256. The cubic root of 82998549 is about 436.2045252172.

The spelling of 82998549 in words is "eighty-two million, nine hundred ninety-eight thousand, five hundred forty-nine".