16678323 has 12 divisors (see below), whose sum is σ = 24240840. Its totient is φ = 11049696.

The previous prime is 16678313. The next prime is 16678331. The reversal of 16678323 is 32387661.

It is a happy number.

It is not a de Polignac number, because 16678323 - 2⁴ = 16678307 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16678313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4218 + ... + 7151.

It is an arithmetic number, because the mean of its divisors is an integer number (2020070).

Almost surely, 2^16678323 is an apocalyptic number.

16678323 is a deficient number, since it is larger than the sum of its proper divisors (7562517).

16678323 is a wasteful number, since it uses less digits than its factorization.

16678323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11538 (or 11535 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 16678323 is about 4083.9102585635. The cubic root of 16678323 is about 255.4960126420.

The spelling of 16678323 in words is "sixteen million, six hundred seventy-eight thousand, three hundred twenty-three".