16690747 has 8 divisors (see below), whose sum is σ = 17342640. Its totient is φ = 16044000.

The previous prime is 16690717. The next prime is 16690763. The reversal of 16690747 is 74709661.

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

It is a cyclic number.

It is not a de Polignac number, because 16690747 - 2¹⁹ = 16166459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16690717) 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 7 ways as a sum of consecutive naturals, for example, 6133 + ... + 8425.

It is an arithmetic number, because the mean of its divisors is an integer number (2167830).

Almost surely, 2^16690747 is an apocalyptic number.

16690747 is a deficient number, since it is larger than the sum of its proper divisors (651893).

16690747 is a wasteful number, since it uses less digits than its factorization.

16690747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 16690747 is about 4085.4310666073. The cubic root of 16690747 is about 255.5594381753.

The spelling of 16690747 in words is "sixteen million, six hundred ninety thousand, seven hundred forty-seven".