16976642 has 16 divisors (see below), whose sum is σ = 27474552. Its totient is φ = 7837440.

The previous prime is 16976639. The next prime is 16976647. The reversal of 16976642 is 24667961.

It can be written as a sum of positive squares in 4 ways, for example, as 16168441 + 808201 = 4021^2 + 899^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16976642.

It is not an unprimeable number, because it can be changed into a prime (16976647) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2909 + ... + 6512.

Almost surely, 2^16976642 is an apocalyptic number.

16976642 is a deficient number, since it is larger than the sum of its proper divisors (10497910).

16976642 is a wasteful number, since it uses less digits than its factorization.

16976642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9493.

The product of its digits is 108864, while the sum is 41.

The square root of 16976642 is about 4120.2720783948. The cubic root of 16976642 is about 257.0103403915.

The spelling of 16976642 in words is "sixteen million, nine hundred seventy-six thousand, six hundred forty-two".