17994329 has 4 divisors (see below), whose sum is σ = 18289380. Its totient is φ = 17699280.

The previous prime is 17994323. The next prime is 17994337. The reversal of 17994329 is 92349971.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9467929 + 8526400 = 3077^2 + 2920^2 .

It is a cyclic number.

It is not a de Polignac number, because 17994329 - 2¹⁶ = 17928793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 17994329.

It is not an unprimeable number, because it can be changed into a prime (17994323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147434 + ... + 147555.

It is an arithmetic number, because the mean of its divisors is an integer number (4572345).

Almost surely, 2^17994329 is an apocalyptic number.

It is an amenable number.

17994329 is a deficient number, since it is larger than the sum of its proper divisors (295051).

17994329 is an equidigital number, since it uses as much as digits as its factorization.

17994329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295050.

The product of its digits is 122472, while the sum is 44.

The square root of 17994329 is about 4241.9723007111. The cubic root of 17994329 is about 262.0466138921.

The spelling of 17994329 in words is "seventeen million, nine hundred ninety-four thousand, three hundred twenty-nine".