16697226 has 64 divisors (see below), whose sum is σ = 41948928. Its totient is φ = 4313088.

The previous prime is 16697183. The next prime is 16697269. The reversal of 16697226 is 62279661.

It is an interprime number because it is at equal distance from previous prime (16697183) and next prime (16697269).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28650 + ... + 29226.

It is an arithmetic number, because the mean of its divisors is an integer number (655452).

Almost surely, 2^16697226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16697226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20974464).

16697226 is an abundant number, since it is smaller than the sum of its proper divisors (25251702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16697226 is a wasteful number, since it uses less digits than its factorization.

16697226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655.

The product of its digits is 54432, while the sum is 39.

The square root of 16697226 is about 4086.2239292530. The cubic root of 16697226 is about 255.5925015127.

The spelling of 16697226 in words is "sixteen million, six hundred ninety-seven thousand, two hundred twenty-six".