164398 has 8 divisors (see below), whose sum is σ = 265608. Its totient is φ = 75864.

The previous prime is 164387. The next prime is 164413. The reversal of 164398 is 893461.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3136 + ... + 3187.

It is an arithmetic number, because the mean of its divisors is an integer number (33201).

2¹⁶⁴³⁹⁸ is an apocalyptic number.

164398 is a deficient number, since it is larger than the sum of its proper divisors (101210).

164398 is a wasteful number, since it uses less digits than its factorization.

164398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6338.

The product of its digits is 5184, while the sum is 31.

The square root of 164398 is about 405.4602323286. The cubic root of 164398 is about 54.7812801245.

The spelling of 164398 in words is "one hundred sixty-four thousand, three hundred ninety-eight".