16696961 has 4 divisors (see below), whose sum is σ = 17012052. Its totient is φ = 16381872.

The previous prime is 16696949. The next prime is 16696969. The reversal of 16696961 is 16969661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4579600 + 12117361 = 2140^2 + 3481^2 .

It is a cyclic number.

It is not a de Polignac number, because 16696961 - 2¹⁰ = 16695937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16696969) 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, 157466 + ... + 157571.

It is an arithmetic number, because the mean of its divisors is an integer number (4253013).

Almost surely, 2^16696961 is an apocalyptic number.

It is an amenable number.

16696961 is a deficient number, since it is larger than the sum of its proper divisors (315091).

16696961 is an equidigital number, since it uses as much as digits as its factorization.

16696961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315090.

The product of its digits is 104976, while the sum is 44.

The square root of 16696961 is about 4086.1915030992. The cubic root of 16696961 is about 255.5911493446.

The spelling of 16696961 in words is "sixteen million, six hundred ninety-six thousand, nine hundred sixty-one".