16717061 has 4 divisors (see below), whose sum is σ = 16725324. Its totient is φ = 16708800.

The previous prime is 16717049. The next prime is 16717097. The reversal of 16717061 is 16071761.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8014561 + 8702500 = 2831^2 + 2950^2 .

It is a cyclic number.

It is not a de Polignac number, because 16717061 - 2¹⁸ = 16454917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16717031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1181 + ... + 5901.

It is an arithmetic number, because the mean of its divisors is an integer number (4181331).

It is a Poulet number, since it divides 2^16717060-1.

Almost surely, 2^16717061 is an apocalyptic number.

16717061 is the 1829-th centered decagonal number.

It is an amenable number.

16717061 is a deficient number, since it is larger than the sum of its proper divisors (8263).

16717061 is an equidigital number, since it uses as much as digits as its factorization.

16717061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8262.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 16717061 is about 4088.6502662859. The cubic root of 16717061 is about 255.6936694379.

The spelling of 16717061 in words is "sixteen million, seven hundred seventeen thousand, sixty-one".