20704453 has 16 divisors (see below), whose sum is σ = 27333504. Its totient is φ = 15183360.

The previous prime is 20704447. The next prime is 20704459. The reversal of 20704453 is 35440702.

It is an interprime number because it is at equal distance from previous prime (20704447) and next prime (20704459).

It is a cyclic number.

It is not a de Polignac number, because 20704453 - 2²¹ = 18607301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20704459) 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, 6600 + ... + 9217.

It is an arithmetic number, because the mean of its divisors is an integer number (1708344).

Almost surely, 2^20704453 is an apocalyptic number.

It is an amenable number.

20704453 is a deficient number, since it is larger than the sum of its proper divisors (6629051).

20704453 is a wasteful number, since it uses less digits than its factorization.

20704453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15852.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20704453 is about 4550.2146103233. The cubic root of 20704453 is about 274.5920253539.

The spelling of 20704453 in words is "twenty million, seven hundred four thousand, four hundred fifty-three".