17942073 has 4 divisors (see below), whose sum is σ = 23922768. Its totient is φ = 11961380.

The previous prime is 17942069. The next prime is 17942083. The reversal of 17942073 is 37024971.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 17942073 - 2² = 17942069 is a prime.

It is not an unprimeable number, because it can be changed into a prime (17942053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2990343 + ... + 2990348.

It is an arithmetic number, because the mean of its divisors is an integer number (5980692).

Almost surely, 2^17942073 is an apocalyptic number.

It is an amenable number.

17942073 is a deficient number, since it is larger than the sum of its proper divisors (5980695).

17942073 is an equidigital number, since it uses as much as digits as its factorization.

17942073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5980694.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 17942073 is about 4235.8084234299. The cubic root of 17942073 is about 261.7927045500.

The spelling of 17942073 in words is "seventeen million, nine hundred forty-two thousand, seventy-three".