16878946 has 8 divisors (see below), whose sum is σ = 28935360. Its totient is φ = 7233828.

The previous prime is 16878889. The next prime is 16878947. The reversal of 16878946 is 64987861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16878946.

It is not an unprimeable number, because it can be changed into a prime (16878947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602806 + ... + 602833.

It is an arithmetic number, because the mean of its divisors is an integer number (3616920).

Almost surely, 2^16878946 is an apocalyptic number.

16878946 is a deficient number, since it is larger than the sum of its proper divisors (12056414).

16878946 is a wasteful number, since it uses less digits than its factorization.

16878946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205648.

The product of its digits is 580608, while the sum is 49.

The square root of 16878946 is about 4108.3994450394. The cubic root of 16878946 is about 256.5163832288.

The spelling of 16878946 in words is "sixteen million, eight hundred seventy-eight thousand, nine hundred forty-six".