164433393 has 24 divisors (see below), whose sum is σ = 253643520. Its totient is φ = 102422880.

The previous prime is 164433383. The next prime is 164433397. The reversal of 164433393 is 393334461.

164433393 is a `hidden beast` number, since 1 + 644 + 3 + 3 + 3 + 9 + 3 = 666.

It is not a de Polignac number, because 164433393 - 2⁵ = 164433361 is a prime.

It is a super-3 number, since 3×164433393³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (164433397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2071 + ... + 18252.

It is an arithmetic number, because the mean of its divisors is an integer number (10568480).

Almost surely, 2^164433393 is an apocalyptic number.

It is an amenable number.

164433393 is a deficient number, since it is larger than the sum of its proper divisors (89210127).

164433393 is a wasteful number, since it uses less digits than its factorization.

164433393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20389 (or 20386 counting only the distinct ones).

The product of its digits is 69984, while the sum is 36.

The square root of 164433393 is about 12823.1584642786. The cubic root of 164433393 is about 547.8521110242.

The spelling of 164433393 in words is "one hundred sixty-four million, four hundred thirty-three thousand, three hundred ninety-three".