20899483 has 12 divisors (see below), whose sum is σ = 23260104. Its totient is φ = 18761600.

The previous prime is 20899481. The next prime is 20899499. The reversal of 20899483 is 38499802.

It is a happy number.

It is not a de Polignac number, because 20899483 - 2¹ = 20899481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20899481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9003 + ... + 11083.

It is an arithmetic number, because the mean of its divisors is an integer number (1938342).

Almost surely, 2^20899483 is an apocalyptic number.

20899483 is a deficient number, since it is larger than the sum of its proper divisors (2360621).

20899483 is a wasteful number, since it uses less digits than its factorization.

20899483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186 (or 2175 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 20899483 is about 4571.5952358012. The cubic root of 20899483 is about 275.4515248982.

The spelling of 20899483 in words is "twenty million, eight hundred ninety-nine thousand, four hundred eighty-three".