89161982 has 16 divisors (see below), whose sum is σ = 164607072. Its totient is φ = 35272800.

The previous prime is 89161973. The next prime is 89161993. The reversal of 89161982 is 28916198.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 244769 + ... + 245132.

It is an arithmetic number, because the mean of its divisors is an integer number (10287942).

Almost surely, 2^89161982 is an apocalyptic number.

89161982 is a deficient number, since it is larger than the sum of its proper divisors (75445090).

89161982 is a wasteful number, since it uses less digits than its factorization.

89161982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489923.

The product of its digits is 62208, while the sum is 44.

The square root of 89161982 is about 9442.5622582009. The cubic root of 89161982 is about 446.7452099447.

The spelling of 89161982 in words is "eighty-nine million, one hundred sixty-one thousand, nine hundred eighty-two".