16728838 has 8 divisors (see below), whose sum is σ = 28678032. Its totient is φ = 7169496.

The previous prime is 16728827. The next prime is 16728863. The reversal of 16728838 is 83882761.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×16728838³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16728794 and 16728803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597445 + ... + 597472.

It is an arithmetic number, because the mean of its divisors is an integer number (3584754).

Almost surely, 2^16728838 is an apocalyptic number.

16728838 is a deficient number, since it is larger than the sum of its proper divisors (11949194).

16728838 is a wasteful number, since it uses less digits than its factorization.

16728838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194926.

The product of its digits is 129024, while the sum is 43.

The square root of 16728838 is about 4090.0902190539. The cubic root of 16728838 is about 255.7536998758.

The spelling of 16728838 in words is "sixteen million, seven hundred twenty-eight thousand, eight hundred thirty-eight".