16973623 has 4 divisors (see below), whose sum is σ = 17007480. Its totient is φ = 16939768.

The previous prime is 16973611. The next prime is 16973653. The reversal of 16973623 is 32637961.

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

It is a cyclic number.

It is not a de Polignac number, because 16973623 - 2⁵ = 16973591 is a prime.

It is a super-2 number, since 2×16973623² = 576207755492258, which contains 22 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 (16973603) 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, 16165 + ... + 17182.

It is an arithmetic number, because the mean of its divisors is an integer number (4251870).

Almost surely, 2^16973623 is an apocalyptic number.

16973623 is a deficient number, since it is larger than the sum of its proper divisors (33857).

16973623 is an equidigital number, since it uses as much as digits as its factorization.

16973623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33856.

The product of its digits is 40824, while the sum is 37.

The square root of 16973623 is about 4119.9057028044. The cubic root of 16973623 is about 256.9951045513.

The spelling of 16973623 in words is "sixteen million, nine hundred seventy-three thousand, six hundred twenty-three".