16790216 has 8 divisors (see below), whose sum is σ = 31481670. Its totient is φ = 8395104.

The previous prime is 16790201. The next prime is 16790239. The reversal of 16790216 is 61209761.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13293316 + 3496900 = 3646^2 + 1870^2 .

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

It is a super-2 number, since 2×16790216² = 563822706653312, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1049381 + ... + 1049396.

Almost surely, 2^16790216 is an apocalyptic number.

It is an amenable number.

16790216 is a deficient number, since it is larger than the sum of its proper divisors (14691454).

16790216 is a wasteful number, since it uses less digits than its factorization.

16790216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098783 (or 2098779 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 16790216 is about 4097.5866067723. The cubic root of 16790216 is about 256.0661043483.

Adding to 16790216 its reverse (61209761), we get a palindrome (77999977).

The spelling of 16790216 in words is "sixteen million, seven hundred ninety thousand, two hundred sixteen".