16774216 has 8 divisors (see below), whose sum is σ = 31451670. Its totient is φ = 8387104.

The previous prime is 16774201. The next prime is 16774249. The reversal of 16774216 is 61247761.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13351716 + 3422500 = 3654^2 + 1850^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1048381 + ... + 1048396.

Almost surely, 2^16774216 is an apocalyptic number.

It is an amenable number.

16774216 is a deficient number, since it is larger than the sum of its proper divisors (14677454).

16774216 is a wasteful number, since it uses less digits than its factorization.

16774216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096783 (or 2096779 counting only the distinct ones).

The product of its digits is 14112, while the sum is 34.

The square root of 16774216 is about 4095.6337726901. The cubic root of 16774216 is about 255.9847403014.

The spelling of 16774216 in words is "sixteen million, seven hundred seventy-four thousand, two hundred sixteen".