164343817 has 8 divisors (see below), whose sum is σ = 179829792. Its totient is φ = 148948800.

The previous prime is 164343799. The next prime is 164343827. The reversal of 164343817 is 718343461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164343817 - 2⁷ = 164343689 is a prime.

It is a super-2 number, since 2×164343817² = 54017780372258978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164343827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18928 + ... + 26209.

It is an arithmetic number, because the mean of its divisors is an integer number (22478724).

Almost surely, 2^164343817 is an apocalyptic number.

It is an amenable number.

164343817 is a deficient number, since it is larger than the sum of its proper divisors (15485975).

164343817 is a wasteful number, since it uses less digits than its factorization.

164343817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45479.

The product of its digits is 48384, while the sum is 37.

The square root of 164343817 is about 12819.6652452394. The cubic root of 164343817 is about 547.7526111321.

The spelling of 164343817 in words is "one hundred sixty-four million, three hundred forty-three thousand, eight hundred seventeen".