16497965 has 16 divisors (see below), whose sum is σ = 21876480. Its totient is φ = 11843520.

The previous prime is 16497961. The next prime is 16497977. The reversal of 16497965 is 56979461.

It is not a de Polignac number, because 16497965 - 2² = 16497961 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16497961) 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 15 ways as a sum of consecutive naturals, for example, 2447 + ... + 6243.

It is an arithmetic number, because the mean of its divisors is an integer number (1367280).

Almost surely, 2^16497965 is an apocalyptic number.

It is an amenable number.

16497965 is a deficient number, since it is larger than the sum of its proper divisors (5378515).

16497965 is a wasteful number, since it uses less digits than its factorization.

16497965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892.

The product of its digits is 408240, while the sum is 47.

The square root of 16497965 is about 4061.7687034099. The cubic root of 16497965 is about 254.5717018969.

The spelling of 16497965 in words is "sixteen million, four hundred ninety-seven thousand, nine hundred sixty-five".