16671697 has 8 divisors (see below), whose sum is σ = 19081152. Its totient is φ = 14269200.

The previous prime is 16671661. The next prime is 16671701. The reversal of 16671697 is 79617661.

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 16671697 - 2¹⁹ = 16147409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16671647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5322 + ... + 7852.

It is an arithmetic number, because the mean of its divisors is an integer number (2385144).

Almost surely, 2^16671697 is an apocalyptic number.

It is an amenable number.

16671697 is a deficient number, since it is larger than the sum of its proper divisors (2409455).

16671697 is an equidigital number, since it uses as much as digits as its factorization.

16671697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479.

The product of its digits is 95256, while the sum is 43.

The square root of 16671697 is about 4083.0989456539. The cubic root of 16671697 is about 255.4621734920.

It can be divided in two parts, 1667 and 1697, that added together give a square (3364 = 58²).

The spelling of 16671697 in words is "sixteen million, six hundred seventy-one thousand, six hundred ninety-seven".