164784988 has 12 divisors (see below), whose sum is σ = 288869112. Its totient is φ = 82250960.

The previous prime is 164784979. The next prime is 164785021. The reversal of 164784988 is 889487461.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32743 + ... + 37438.

It is an arithmetic number, because the mean of its divisors is an integer number (24072426).

Almost surely, 2^164784988 is an apocalyptic number.

It is an amenable number.

164784988 is a deficient number, since it is larger than the sum of its proper divisors (124084124).

164784988 is a wasteful number, since it uses less digits than its factorization.

164784988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70772 (or 70770 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 55.

The square root of 164784988 is about 12836.8605196130. The cubic root of 164784988 is about 548.2423094156.

The spelling of 164784988 in words is "one hundred sixty-four million, seven hundred eighty-four thousand, nine hundred eighty-eight".