20808483 has 8 divisors (see below), whose sum is σ = 27798096. Its totient is φ = 13845600.

The previous prime is 20808481. The next prime is 20808497. The reversal of 20808483 is 38480802.

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

It is not a de Polignac number, because 20808483 - 2¹ = 20808481 is a prime.

It is a super-2 number, since 2×20808483² = 865985929522578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20808481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4788 + ... + 8033.

It is an arithmetic number, because the mean of its divisors is an integer number (3474762).

Almost surely, 2^20808483 is an apocalyptic number.

20808483 is a deficient number, since it is larger than the sum of its proper divisors (6989613).

20808483 is a wasteful number, since it uses less digits than its factorization.

20808483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13365.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 20808483 is about 4561.6316159901. The cubic root of 20808483 is about 275.0511552219.

The spelling of 20808483 in words is "twenty million, eight hundred eight thousand, four hundred eighty-three".