16742623 has 4 divisors (see below), whose sum is σ = 16972048. Its totient is φ = 16513200.

The previous prime is 16742587. The next prime is 16742641. The reversal of 16742623 is 32624761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32624761 = 13 ⋅2509597.

It is a cyclic number.

It is not a de Polignac number, because 16742623 - 2⁹ = 16742111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16742023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114603 + ... + 114748.

It is an arithmetic number, because the mean of its divisors is an integer number (4243012).

Almost surely, 2^16742623 is an apocalyptic number.

16742623 is a deficient number, since it is larger than the sum of its proper divisors (229425).

16742623 is an equidigital number, since it uses as much as digits as its factorization.

16742623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229424.

The product of its digits is 12096, while the sum is 31.

The square root of 16742623 is about 4091.7750426924. The cubic root of 16742623 is about 255.8239298346.

The spelling of 16742623 in words is "sixteen million, seven hundred forty-two thousand, six hundred twenty-three".