16316969 has 4 divisors (see below), whose sum is σ = 16407300. Its totient is φ = 16226640.

The previous prime is 16316947. The next prime is 16317011. The reversal of 16316969 is 96961361.

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 316969 + 16000000 = 563^2 + 4000^2 .

It is a cyclic number.

It is not a de Polignac number, because 16316969 - 2¹² = 16312873 is a prime.

It is a super-2 number, since 2×16316969² = 532486954693922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16316929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44894 + ... + 45255.

It is an arithmetic number, because the mean of its divisors is an integer number (4101825).

Almost surely, 2^16316969 is an apocalyptic number.

It is an amenable number.

16316969 is a deficient number, since it is larger than the sum of its proper divisors (90331).

16316969 is an equidigital number, since it uses as much as digits as its factorization.

16316969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90330.

The product of its digits is 52488, while the sum is 41.

The square root of 16316969 is about 4039.4268157747. The cubic root of 16316969 is about 253.6373241727.

It can be divided in two parts, 16 and 316969, that multiplied together give a square (5071504 = 2252²).

The spelling of 16316969 in words is "sixteen million, three hundred sixteen thousand, nine hundred sixty-nine".