16687376 has 10 divisors (see below), whose sum is σ = 32331822. Its totient is φ = 8343680.

The previous prime is 16687337. The next prime is 16687381. The reversal of 16687376 is 67378661.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11397376 + 5290000 = 3376^2 + 2300^2 .

It is a nialpdrome in base 16.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 521465 + ... + 521496.

Almost surely, 2^16687376 is an apocalyptic number.

16687376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16687376 is a deficient number, since it is larger than the sum of its proper divisors (15644446).

16687376 is a wasteful number, since it uses less digits than its factorization.

16687376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042969 (or 1042963 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The square root of 16687376 is about 4085.0184822103. The cubic root of 16687376 is about 255.5422320576.

The spelling of 16687376 in words is "sixteen million, six hundred eighty-seven thousand, three hundred seventy-six".