164404297 has 12 divisors (see below), whose sum is σ = 175495936. Its totient is φ = 153979200.

The previous prime is 164404259. The next prime is 164404313. The reversal of 164404297 is 792404461.

It is a happy number.

It is not a de Polignac number, because 164404297 - 2²³ = 156015689 is a prime.

It is a super-3 number, since 3×164404297³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164404697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63172 + ... + 65722.

Almost surely, 2^164404297 is an apocalyptic number.

164404297 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

164404297 is a deficient number, since it is larger than the sum of its proper divisors (11091639).

164404297 is a wasteful number, since it uses less digits than its factorization.

164404297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808 (or 2791 counting only the distinct ones).

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

The square root of 164404297 is about 12822.0239042048. The cubic root of 164404297 is about 547.8197955174.

The spelling of 164404297 in words is "one hundred sixty-four million, four hundred four thousand, two hundred ninety-seven".