17994061 has 4 divisors (see below), whose sum is σ = 18006300. Its totient is φ = 17981824.

The previous prime is 17994023. The next prime is 17994077. The reversal of 17994061 is 16049971.

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 8964036 + 9030025 = 2994^2 + 3005^2 .

It is a cyclic number.

It is not a de Polignac number, because 17994061 - 2⁷ = 17993933 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 17994061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17994161) 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, 3556 + ... + 6973.

It is an arithmetic number, because the mean of its divisors is an integer number (4501575).

Almost surely, 2^17994061 is an apocalyptic number.

It is an amenable number.

17994061 is a deficient number, since it is larger than the sum of its proper divisors (12239).

17994061 is a wasteful number, since it uses less digits than its factorization.

17994061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12238.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 17994061 is about 4241.9407115140. The cubic root of 17994061 is about 262.0453129482.

The spelling of 17994061 in words is "seventeen million, nine hundred ninety-four thousand, sixty-one".