16706223 has 24 divisors (see below), whose sum is σ = 26303760. Its totient is φ = 10477440.

The previous prime is 16706177. The next prime is 16706243. The reversal of 16706223 is 32260761.

It is a happy number.

It is not a de Polignac number, because 16706223 - 2⁸ = 16705967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16706243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6733 + ... + 8873.

It is an arithmetic number, because the mean of its divisors is an integer number (1095990).

Almost surely, 2^16706223 is an apocalyptic number.

16706223 is a deficient number, since it is larger than the sum of its proper divisors (9597537).

16706223 is a wasteful number, since it uses less digits than its factorization.

16706223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184 (or 2161 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 16706223 is about 4087.3246751390. The cubic root of 16706223 is about 255.6384004110.

Adding to 16706223 its reverse (32260761), we get a palindrome (48966984).

The spelling of 16706223 in words is "sixteen million, seven hundred six thousand, two hundred twenty-three".