16678974 has 16 divisors (see below), whose sum is σ = 35924112. Its totient is φ = 5131968.

The previous prime is 16678957. The next prime is 16678997. The reversal of 16678974 is 47987661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106839 + ... + 106994.

It is an arithmetic number, because the mean of its divisors is an integer number (2245257).

Almost surely, 2^16678974 is an apocalyptic number.

16678974 is an abundant number, since it is smaller than the sum of its proper divisors (19245138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16678974 is a wasteful number, since it uses less digits than its factorization.

16678974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213851.

The product of its digits is 508032, while the sum is 48.

The square root of 16678974 is about 4083.9899608104. The cubic root of 16678974 is about 255.4993368319.

The spelling of 16678974 in words is "sixteen million, six hundred seventy-eight thousand, nine hundred seventy-four".