82198845 has 48 divisors (see below), whose sum is σ = 151357440. Its totient is φ = 41150592.

The previous prime is 82198829. The next prime is 82198861. The reversal of 82198845 is 54889128.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82198829) and next prime (82198861).

It is not a de Polignac number, because 82198845 - 2⁴ = 82198829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 82198845.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 108207 + ... + 108963.

It is an arithmetic number, because the mean of its divisors is an integer number (3153280).

Almost surely, 2^82198845 is an apocalyptic number.

It is an amenable number.

82198845 is a deficient number, since it is larger than the sum of its proper divisors (69158595).

82198845 is a wasteful number, since it uses less digits than its factorization.

82198845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914 (or 911 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 82198845 is about 9066.3578685159. The cubic root of 82198845 is about 434.7990351932.

The spelling of 82198845 in words is "eighty-two million, one hundred ninety-eight thousand, eight hundred forty-five".