16697746 has 16 divisors (see below), whose sum is σ = 27045144. Its totient is φ = 7686144.

The previous prime is 16697741. The next prime is 16697749. The reversal of 16697746 is 64779661.

It can be written as a sum of positive squares in 4 ways, for example, as 10169721 + 6528025 = 3189^2 + 2555^2 .

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16697696 and 16697705.

It is not an unprimeable number, because it can be changed into a prime (16697741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13906 + ... + 15058.

Almost surely, 2^16697746 is an apocalyptic number.

16697746 is a deficient number, since it is larger than the sum of its proper divisors (10347398).

16697746 is a wasteful number, since it uses less digits than its factorization.

16697746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725.

The product of its digits is 381024, while the sum is 46.

The square root of 16697746 is about 4086.2875571844. The cubic root of 16697746 is about 255.5951547822.

The spelling of 16697746 in words is "sixteen million, six hundred ninety-seven thousand, seven hundred forty-six".