16727642 has 4 divisors (see below), whose sum is σ = 25091466. Its totient is φ = 8363820.

The previous prime is 16727617. The next prime is 16727653. The reversal of 16727642 is 24672761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24672761 = 149 ⋅165589.

It can be written as a sum of positive squares in only one way, i.e., 16638241 + 89401 = 4079^2 + 299^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4181909 + ... + 4181912.

Almost surely, 2^16727642 is an apocalyptic number.

16727642 is a deficient number, since it is larger than the sum of its proper divisors (8363824).

16727642 is an equidigital number, since it uses as much as digits as its factorization.

16727642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8363823.

The product of its digits is 28224, while the sum is 35.

The square root of 16727642 is about 4089.9440093967. The cubic root of 16727642 is about 255.7476048377.

The spelling of 16727642 in words is "sixteen million, seven hundred twenty-seven thousand, six hundred forty-two".