16804669 has 4 divisors (see below), whose sum is σ = 19205344. Its totient is φ = 14403996.

The previous prime is 16804663. The next prime is 16804679. The reversal of 16804669 is 96640861.

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 not a de Polignac number, because 16804669 - 2³ = 16804661 is a prime.

It is a super-2 number, since 2×16804669² = 564793800399122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16804661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200327 + ... + 1200340.

It is an arithmetic number, because the mean of its divisors is an integer number (4801336).

Almost surely, 2^16804669 is an apocalyptic number.

It is an amenable number.

16804669 is a deficient number, since it is larger than the sum of its proper divisors (2400675).

16804669 is an equidigital number, since it uses as much as digits as its factorization.

16804669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400674.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 16804669 is about 4099.3498264969. The cubic root of 16804669 is about 256.1395570861.

The spelling of 16804669 in words is "sixteen million, eight hundred four thousand, six hundred sixty-nine".