20846834 has 8 divisors (see below), whose sum is σ = 31313628. Its totient is φ = 10408960.

The previous prime is 20846827. The next prime is 20846851. The reversal of 20846834 is 43864802.

It can be written as a sum of positive squares in 2 ways, for example, as 12581209 + 8265625 = 3547^2 + 2875^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 20846794 and 20846803.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5327 + ... + 8370.

Almost surely, 2^20846834 is an apocalyptic number.

20846834 is a deficient number, since it is larger than the sum of its proper divisors (10466794).

20846834 is a wasteful number, since it uses less digits than its factorization.

20846834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14460.

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 20846834 is about 4565.8333302914. The cubic root of 20846834 is about 275.2200288655.

The spelling of 20846834 in words is "twenty million, eight hundred forty-six thousand, eight hundred thirty-four".