82163198 has 16 divisors (see below), whose sum is σ = 134220240. Its totient is φ = 37494336.

The previous prime is 82163173. The next prime is 82163209. The reversal of 82163198 is 89136128.

It is a super-2 number, since 2×82163198² = 13501582211174408, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15440 + ... + 20067.

It is an arithmetic number, because the mean of its divisors is an integer number (8388765).

Almost surely, 2^82163198 is an apocalyptic number.

82163198 is a deficient number, since it is larger than the sum of its proper divisors (52057042).

82163198 is a wasteful number, since it uses less digits than its factorization.

82163198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35611.

The product of its digits is 20736, while the sum is 38.

The square root of 82163198 is about 9064.3917611718. The cubic root of 82163198 is about 434.7361733112.

The spelling of 82163198 in words is "eighty-two million, one hundred sixty-three thousand, one hundred ninety-eight".