16677443 has 4 divisors (see below), whose sum is σ = 16864920. Its totient is φ = 16489968.

The previous prime is 16677431. The next prime is 16677449. The reversal of 16677443 is 34477661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16677443 - 2⁶ = 16677379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16677397 and 16677406.

It is not an unprimeable number, because it can be changed into a prime (16677449) 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, 93605 + ... + 93782.

It is an arithmetic number, because the mean of its divisors is an integer number (4216230).

Almost surely, 2^16677443 is an apocalyptic number.

16677443 is a deficient number, since it is larger than the sum of its proper divisors (187477).

16677443 is an equidigital number, since it uses as much as digits as its factorization.

16677443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187476.

The product of its digits is 84672, while the sum is 38.

The square root of 16677443 is about 4083.8025172626. The cubic root of 16677443 is about 255.4915189758.

The spelling of 16677443 in words is "sixteen million, six hundred seventy-seven thousand, four hundred forty-three".