16317697 has 6 divisors (see below), whose sum is σ = 17936114. Its totient is φ = 14834160.

The previous prime is 16317677. The next prime is 16317733. The reversal of 16317697 is 79671361.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10246401 + 6071296 = 3201^2 + 2464^2 .

It is not a de Polignac number, because 16317697 - 2¹⁹ = 15793409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16317647) 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 5 ways as a sum of consecutive naturals, for example, 67308 + ... + 67549.

Almost surely, 2^16317697 is an apocalyptic number.

It is an amenable number.

16317697 is a deficient number, since it is larger than the sum of its proper divisors (1618417).

16317697 is a wasteful number, since it uses less digits than its factorization.

16317697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134879 (or 134868 counting only the distinct ones).

The product of its digits is 47628, while the sum is 40.

The square root of 16317697 is about 4039.5169265644. The cubic root of 16317697 is about 253.6410962218.

It can be divided in two parts, 16 and 317697, that added together give a palindrome (317713).

The spelling of 16317697 in words is "sixteen million, three hundred seventeen thousand, six hundred ninety-seven".