16803994 has 8 divisors (see below), whose sum is σ = 25887348. Its totient is φ = 8174880.

The previous prime is 16803979. The next prime is 16804003. The reversal of 16803994 is 49930861.

It can be written as a sum of positive squares in 2 ways, for example, as 16769025 + 34969 = 4095^2 + 187^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113467 + ... + 113614.

Almost surely, 2^16803994 is an apocalyptic number.

16803994 is a deficient number, since it is larger than the sum of its proper divisors (9083354).

16803994 is a wasteful number, since it uses less digits than its factorization.

16803994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227120.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 16803994 is about 4099.2674955411. The cubic root of 16803994 is about 256.1361275528.

The spelling of 16803994 in words is "sixteen million, eight hundred three thousand, nine hundred ninety-four".