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16497 = 331347

16497 has 16 divisors (see below), whose sum is σ = 26880. Its totient is φ = 9936.

The previous prime is 16493. The next prime is 16519. The reversal of 16497 is 79461.

16497 is nontrivially palindromic in base 12.

16497 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16497 - 22 = 16493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (1512) is a multiple of the sum of its prime divisors (63).

It is a self number, because there is not a number n which added to its sum of digits gives 16497.

It is not an unprimeable number, because it can be changed into a prime (16493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328 + ... + 374.

It is an arithmetic number, because the mean of its divisors is an integer number (1680).

216497 is an apocalyptic number.

It is an amenable number.

16497 is a deficient number, since it is larger than the sum of its proper divisors (10383).

16497 is a wasteful number, since it uses less digits than its factorization.

16497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 63 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 16497 is about 128.4406477716. The cubic root of 16497 is about 25.4566738325.

The spelling of 16497 in words is "sixteen thousand, four hundred ninety-seven".

Divisors: 1 3 9 13 27 39 47 117 141 351 423 611 1269 1833 5499 16497