20798835 has 16 divisors (see below), whose sum is σ = 33586080. Its totient is φ = 10990080.

The previous prime is 20798797. The next prime is 20798839. The reversal of 20798835 is 53889702.

It is not a de Polignac number, because 20798835 - 2⁷ = 20798707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20798839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4726 + ... + 7995.

It is an arithmetic number, because the mean of its divisors is an integer number (2099130).

Almost surely, 2^20798835 is an apocalyptic number.

20798835 is a deficient number, since it is larger than the sum of its proper divisors (12787245).

20798835 is a wasteful number, since it uses less digits than its factorization.

20798835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12838.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 20798835 is about 4560.5739770340. The cubic root of 20798835 is about 275.0086388471.

The spelling of 20798835 in words is "twenty million, seven hundred ninety-eight thousand, eight hundred thirty-five".