164423433 has 8 divisors (see below), whose sum is σ = 222319296. Its totient is φ = 108071600.

The previous prime is 164423429. The next prime is 164423453. The reversal of 164423433 is 334324461.

164423433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 164423433 - 2² = 164423429 is a prime.

It is a super-3 number, since 3×164423433³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164423433.

It is not an unprimeable number, because it can be changed into a prime (164423453) 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, 385758 + ... + 386183.

It is an arithmetic number, because the mean of its divisors is an integer number (27789912).

Almost surely, 2^164423433 is an apocalyptic number.

It is an amenable number.

164423433 is a deficient number, since it is larger than the sum of its proper divisors (57895863).

164423433 is an equidigital number, since it uses as much as digits as its factorization.

164423433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772015.

The product of its digits is 20736, while the sum is 30.

The square root of 164423433 is about 12822.7700985396. The cubic root of 164423433 is about 547.8410493676.

Adding to 164423433 its reverse (334324461), we get a palindrome (498747894).

The spelling of 164423433 in words is "one hundred sixty-four million, four hundred twenty-three thousand, four hundred thirty-three".