16729047 has 12 divisors (see below), whose sum is σ = 24291904. Its totient is φ = 11093760.

The previous prime is 16729033. The next prime is 16729049. The reversal of 16729047 is 74092761.

It is a happy number.

It is not a de Polignac number, because 16729047 - 2⁶ = 16728983 is a prime.

It is a super-2 number, since 2×16729047² = 559722027056418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16729049) 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 11 ways as a sum of consecutive naturals, for example, 3079 + ... + 6552.

Almost surely, 2^16729047 is an apocalyptic number.

16729047 is a deficient number, since it is larger than the sum of its proper divisors (7562857).

16729047 is a wasteful number, since it uses less digits than its factorization.

16729047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9830 (or 9827 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 16729047 is about 4090.1157685327. The cubic root of 16729047 is about 255.7547649488.

The spelling of 16729047 in words is "sixteen million, seven hundred twenty-nine thousand, forty-seven".