16321697 has 8 divisors (see below), whose sum is σ = 19464576. Its totient is φ = 13381632.

The previous prime is 16321691. The next prime is 16321729. The reversal of 16321697 is 79612361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16321697 - 2⁴ = 16321681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16321691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50528 + ... + 50849.

It is an arithmetic number, because the mean of its divisors is an integer number (2433072).

Almost surely, 2^16321697 is an apocalyptic number.

It is an amenable number.

16321697 is a deficient number, since it is larger than the sum of its proper divisors (3142879).

16321697 is a wasteful number, since it uses less digits than its factorization.

16321697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101407.

The product of its digits is 13608, while the sum is 35.

The square root of 16321697 is about 4040.0120049327. The cubic root of 16321697 is about 253.6618197650.

The spelling of 16321697 in words is "sixteen million, three hundred twenty-one thousand, six hundred ninety-seven".