82168887 has 16 divisors (see below), whose sum is σ = 112464000. Its totient is φ = 53344224.

The previous prime is 82168799. The next prime is 82168937. The reversal of 82168887 is 78886128.

It is not a de Polignac number, because 82168887 - 2⁷ = 82168759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82168487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17164 + ... + 21422.

It is an arithmetic number, because the mean of its divisors is an integer number (7029000).

Almost surely, 2^82168887 is an apocalyptic number.

82168887 is a deficient number, since it is larger than the sum of its proper divisors (30295113).

82168887 is a wasteful number, since it uses less digits than its factorization.

82168887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430.

The product of its digits is 344064, while the sum is 48.

The square root of 82168887 is about 9064.7055660953. The cubic root of 82168887 is about 434.7462068261.

The spelling of 82168887 in words is "eighty-two million, one hundred sixty-eight thousand, eight hundred eighty-seven".