162989864 has 16 divisors (see below), whose sum is σ = 307554900. Its totient is φ = 80975232.

The previous prime is 162989857. The next prime is 162989873. The reversal of 162989864 is 468989261.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 153016900 + 9972964 = 12370^2 + 3158^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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 3 ways as a sum of consecutive naturals, for example, 63629 + ... + 66140.

Almost surely, 2^162989864 is an apocalyptic number.

It is an amenable number.

162989864 is a deficient number, since it is larger than the sum of its proper divisors (144565036).

162989864 is a wasteful number, since it uses less digits than its factorization.

162989864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129932 (or 129928 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 53.

The square root of 162989864 is about 12766.7483722364. The cubic root of 162989864 is about 546.2442340993.

It can be divided in two parts, 16298 and 9864, that added together give a palindrome (26162).

The spelling of 162989864 in words is "one hundred sixty-two million, nine hundred eighty-nine thousand, eight hundred sixty-four".