16704623 has 4 divisors (see below), whose sum is σ = 17989608. Its totient is φ = 15419640.

The previous prime is 16704619. The next prime is 16704637. The reversal of 16704623 is 32640761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32640761 = 1867 ⋅17483.

It is a cyclic number.

It is not a de Polignac number, because 16704623 - 2² = 16704619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16704613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642473 + ... + 642498.

It is an arithmetic number, because the mean of its divisors is an integer number (4497402).

Almost surely, 2^16704623 is an apocalyptic number.

16704623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16704623 is a deficient number, since it is larger than the sum of its proper divisors (1284985).

16704623 is a wasteful number, since it uses less digits than its factorization.

16704623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284984.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 16704623 is about 4087.1289434027. The cubic root of 16704623 is about 255.6302390909.

The spelling of 16704623 in words is "sixteen million, seven hundred four thousand, six hundred twenty-three".