16798994 has 4 divisors (see below), whose sum is σ = 25198494. Its totient is φ = 8399496.

The previous prime is 16798987. The next prime is 16799051. The reversal of 16798994 is 49989761.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49989761 = 2143 ⋅23327.

It can be written as a sum of positive squares in only one way, i.e., 9579025 + 7219969 = 3095^2 + 2687^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4199747 + ... + 4199750.

Almost surely, 2^16798994 is an apocalyptic number.

16798994 is a deficient number, since it is larger than the sum of its proper divisors (8399500).

16798994 is an equidigital number, since it uses as much as digits as its factorization.

16798994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8399499.

The product of its digits is 979776, while the sum is 53.

The square root of 16798994 is about 4098.6575851125. The cubic root of 16798994 is about 256.1107207421.

The spelling of 16798994 in words is "sixteen million, seven hundred ninety-eight thousand, nine hundred ninety-four".