16804047 has 8 divisors (see below), whose sum is σ = 24128944. Its totient is φ = 10340928.

The previous prime is 16804033. The next prime is 16804057. The reversal of 16804047 is 74040861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16804047 - 2²³ = 8415439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16804027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215398 + ... + 215475.

It is an arithmetic number, because the mean of its divisors is an integer number (3016118).

Almost surely, 2^16804047 is an apocalyptic number.

16804047 is a deficient number, since it is larger than the sum of its proper divisors (7324897).

16804047 is a wasteful number, since it uses less digits than its factorization.

16804047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430889.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 16804047 is about 4099.2739601056. The cubic root of 16804047 is about 256.1363968379.

The spelling of 16804047 in words is "sixteen million, eight hundred four thousand, forty-seven".