20799598 has 16 divisors (see below), whose sum is σ = 31941360. Its totient is φ = 10155456.

The previous prime is 20799593. The next prime is 20799607. The reversal of 20799598 is 89599702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20799593) 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, 15261 + ... + 16567.

It is an arithmetic number, because the mean of its divisors is an integer number (1996335).

Almost surely, 2^20799598 is an apocalyptic number.

20799598 is a deficient number, since it is larger than the sum of its proper divisors (11141762).

20799598 is a wasteful number, since it uses less digits than its factorization.

20799598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491.

The product of its (nonzero) digits is 408240, while the sum is 49.

The square root of 20799598 is about 4560.6576280181. The cubic root of 20799598 is about 275.0120016801.

The spelling of 20799598 in words is "twenty million, seven hundred ninety-nine thousand, five hundred ninety-eight".