164989384 has 32 divisors (see below), whose sum is σ = 359352000. Its totient is φ = 69549120.

The previous prime is 164989351. The next prime is 164989387. The reversal of 164989384 is 483989461.

It is a happy number.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (164989387) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20734 + ... + 27565.

It is an arithmetic number, because the mean of its divisors is an integer number (11229750).

Almost surely, 2^164989384 is an apocalyptic number.

164989384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

164989384 is an abundant number, since it is smaller than the sum of its proper divisors (194362616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164989384 is a wasteful number, since it uses less digits than its factorization.

164989384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48373 (or 48369 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 52.

The square root of 164989384 is about 12844.8193447787. The cubic root of 164989384 is about 548.4688920200.

The spelling of 164989384 in words is "one hundred sixty-four million, nine hundred eighty-nine thousand, three hundred eighty-four".