16923227 has 4 divisors (see below), whose sum is σ = 17081496. Its totient is φ = 16764960.

The previous prime is 16923223. The next prime is 16923233. The reversal of 16923227 is 72232961.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72232961 = 163 ⋅443147.

It is a cyclic number.

It is not a de Polignac number, because 16923227 - 2² = 16923223 is a prime.

It is a super-2 number, since 2×16923227² = 572791224187058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16923193 and 16923202.

It is not an unprimeable number, because it can be changed into a prime (16923223) 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 3 ways as a sum of consecutive naturals, for example, 78974 + ... + 79187.

It is an arithmetic number, because the mean of its divisors is an integer number (4270374).

Almost surely, 2^16923227 is an apocalyptic number.

16923227 is a deficient number, since it is larger than the sum of its proper divisors (158269).

16923227 is a wasteful number, since it uses less digits than its factorization.

16923227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158268.

The product of its digits is 9072, while the sum is 32.

The square root of 16923227 is about 4113.7849968125. The cubic root of 16923227 is about 256.7405062941.

The spelling of 16923227 in words is "sixteen million, nine hundred twenty-three thousand, two hundred twenty-seven".