164968843 has 6 divisors (see below), whose sum is σ = 178635084. Its totient is φ = 152278776.

The previous prime is 164968751. The next prime is 164968847. The reversal of 164968843 is 348869461.

It is not a de Polignac number, because 164968843 - 2¹³ = 164960651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164968847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 487905 + ... + 488242.

It is an arithmetic number, because the mean of its divisors is an integer number (29772514).

Almost surely, 2^164968843 is an apocalyptic number.

164968843 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

164968843 is a deficient number, since it is larger than the sum of its proper divisors (13666241).

164968843 is an equidigital number, since it uses as much as digits as its factorization.

164968843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976173 (or 976160 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The square root of 164968843 is about 12844.0197368269. The cubic root of 164968843 is about 548.4461298139.

The spelling of 164968843 in words is "one hundred sixty-four million, nine hundred sixty-eight thousand, eight hundred forty-three".