16801802 has 4 divisors (see below), whose sum is σ = 25202706. Its totient is φ = 8400900.

The previous prime is 16801793. The next prime is 16801819. The reversal of 16801802 is 20810861.

It is a Cunningham number, because it is equal to 4099²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20810861 = 233 ⋅89317.

It can be written as a sum of positive squares in only one way, i.e., 16801801 + 1 = 4099^2 + 1^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4200449 + ... + 4200452.

Almost surely, 2^16801802 is an apocalyptic number.

16801802 is a deficient number, since it is larger than the sum of its proper divisors (8400904).

16801802 is an equidigital number, since it uses as much as digits as its factorization.

16801802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8400903.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 16801802 is about 4099.0001219810. Note that the first 3 decimals coincide. The cubic root of 16801802 is about 256.1249898275.

The spelling of 16801802 in words is "sixteen million, eight hundred one thousand, eight hundred two".