16376809 has 4 divisors (see below), whose sum is σ = 16402320. Its totient is φ = 16351300.

The previous prime is 16376791. The next prime is 16376837. The reversal of 16376809 is 90867361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16376809 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16376839) 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, 11767 + ... + 13084.

It is an arithmetic number, because the mean of its divisors is an integer number (4100580).

Almost surely, 2^16376809 is an apocalyptic number.

It is an amenable number.

16376809 is a deficient number, since it is larger than the sum of its proper divisors (25511).

16376809 is an equidigital number, since it uses as much as digits as its factorization.

16376809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25510.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 16376809 is about 4046.8270286732. The cubic root of 16376809 is about 253.9470046710.

The spelling of 16376809 in words is "sixteen million, three hundred seventy-six thousand, eight hundred nine".