16820033 has 8 divisors (see below), whose sum is σ = 17127936. Its totient is φ = 16514800.

The previous prime is 16820017. The next prime is 16820039. The reversal of 16820033 is 33002861.

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

It is a cyclic number.

It is not a de Polignac number, because 16820033 - 2⁴ = 16820017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16819990 and 16820008.

It is not an unprimeable number, because it can be changed into a prime (16820039) 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, 15323 + ... + 16383.

It is an arithmetic number, because the mean of its divisors is an integer number (2140992).

Almost surely, 2^16820033 is an apocalyptic number.

It is an amenable number.

16820033 is a deficient number, since it is larger than the sum of its proper divisors (307903).

16820033 is a wasteful number, since it uses less digits than its factorization.

16820033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 16820033 is about 4101.2233540738. The cubic root of 16820033 is about 256.2175935224.

Adding to 16820033 its reverse (33002861), we get a palindrome (49822894).

The spelling of 16820033 in words is "sixteen million, eight hundred twenty thousand, thirty-three".