16009706 has 4 divisors (see below), whose sum is σ = 24014562. Its totient is φ = 8004852.

The previous prime is 16009687. The next prime is 16009729. The reversal of 16009706 is 60790061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60790061 = 29 ⋅2096209.

It can be written as a sum of positive squares in only one way, i.e., 13579225 + 2430481 = 3685^2 + 1559^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4002425 + ... + 4002428.

Almost surely, 2^16009706 is an apocalyptic number.

16009706 is a deficient number, since it is larger than the sum of its proper divisors (8004856).

16009706 is an equidigital number, since it uses as much as digits as its factorization.

16009706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8004855.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 16009706 is about 4001.2130660588. The cubic root of 16009706 is about 252.0351529864.

Adding to 16009706 its reverse (60790061), we get a palindrome (76799767).

The spelling of 16009706 in words is "sixteen million, nine thousand, seven hundred six".