20802633 has 8 divisors (see below), whose sum is σ = 28207200. Its totient is φ = 13633248.

The previous prime is 20802631. The next prime is 20802637. The reversal of 20802633 is 33620802.

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

It is not a de Polignac number, because 20802633 - 2¹ = 20802631 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20802631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58588 + ... + 58941.

It is an arithmetic number, because the mean of its divisors is an integer number (3525900).

Almost surely, 2^20802633 is an apocalyptic number.

It is an amenable number.

20802633 is a deficient number, since it is larger than the sum of its proper divisors (7404567).

20802633 is a wasteful number, since it uses less digits than its factorization.

20802633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117591.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20802633 is about 4560.9903529826. The cubic root of 20802633 is about 275.0253772724.

The spelling of 20802633 in words is "twenty million, eight hundred two thousand, six hundred thirty-three".