82162089 has 24 divisors (see below), whose sum is σ = 122496192. Its totient is φ = 53028000.

The previous prime is 82162079. The next prime is 82162097. The reversal of 82162089 is 98026128.

82162089 is a `hidden beast` number, since 8 + 21 + 620 + 8 + 9 = 666.

It is not a de Polignac number, because 82162089 - 2⁹ = 82161577 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82162039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83092 + ... + 84074.

It is an arithmetic number, because the mean of its divisors is an integer number (5104008).

Almost surely, 2^82162089 is an apocalyptic number.

It is an amenable number.

82162089 is a deficient number, since it is larger than the sum of its proper divisors (40334103).

82162089 is a wasteful number, since it uses less digits than its factorization.

82162089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277 (or 1274 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 82162089 is about 9064.3305875282. The cubic root of 82162089 is about 434.7342173480.

The spelling of 82162089 in words is "eighty-two million, one hundred sixty-two thousand, eighty-nine".