16728974 has 8 divisors (see below), whose sum is σ = 25375680. Its totient is φ = 8270416.

The previous prime is 16728967. The next prime is 16728977. The reversal of 16728974 is 47982761.

16728974 = T₂₁₂ + T₂₁₃ + ... + T₄₇₈.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16728977) 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, 46814 + ... + 47169.

It is an arithmetic number, because the mean of its divisors is an integer number (3171960).

Almost surely, 2^16728974 is an apocalyptic number.

16728974 is a deficient number, since it is larger than the sum of its proper divisors (8646706).

16728974 is an equidigital number, since it uses as much as digits as its factorization.

16728974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94074.

The product of its digits is 169344, while the sum is 44.

The square root of 16728974 is about 4090.1068445702. The cubic root of 16728974 is about 255.7543929387.

The spelling of 16728974 in words is "sixteen million, seven hundred twenty-eight thousand, nine hundred seventy-four".