20704359 has 24 divisors (see below), whose sum is σ = 30272592. Its totient is φ = 12579840.

The previous prime is 20704309. The next prime is 20704379. The reversal of 20704359 is 95340702.

It is not a de Polignac number, because 20704359 - 2⁹ = 20703847 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20704309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48969 + ... + 49389.

It is an arithmetic number, because the mean of its divisors is an integer number (1261358).

Almost surely, 2^20704359 is an apocalyptic number.

20704359 is a deficient number, since it is larger than the sum of its proper divisors (9568233).

20704359 is a wasteful number, since it uses less digits than its factorization.

20704359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 20704359 is about 4550.2042811285. The cubic root of 20704359 is about 274.5916097961.

The spelling of 20704359 in words is "twenty million, seven hundred four thousand, three hundred fifty-nine".