20834798 has 4 divisors (see below), whose sum is σ = 31252200. Its totient is φ = 10417398.

The previous prime is 20834797. The next prime is 20834813. The reversal of 20834798 is 89743802.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20834797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5208698 + ... + 5208701.

It is an arithmetic number, because the mean of its divisors is an integer number (7813050).

Almost surely, 2^20834798 is an apocalyptic number.

20834798 is a deficient number, since it is larger than the sum of its proper divisors (10417402).

20834798 is a wasteful number, since it uses less digits than its factorization.

20834798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10417401.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 20834798 is about 4564.5150892510. The cubic root of 20834798 is about 275.1670522205.

The spelling of 20834798 in words is "twenty million, eight hundred thirty-four thousand, seven hundred ninety-eight".