20217096 has 48 divisors (see below), whose sum is σ = 56241900. Its totient is φ = 6556032.

The previous prime is 20217077. The next prime is 20217101. The reversal of 20217096 is 69071202.

It can be written as a sum of positive squares in 2 ways, for example, as 19980900 + 236196 = 4470^2 + 486^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1131 + ... + 6458.

Almost surely, 2^20217096 is an apocalyptic number.

It is an amenable number.

20217096 is an abundant number, since it is smaller than the sum of its proper divisors (36024804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20217096 is a wasteful number, since it uses less digits than its factorization.

20217096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7638 (or 7631 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 20217096 is about 4496.3425136437. The cubic root of 20217096 is about 272.4203779382.

Adding to 20217096 its reverse (69071202), we get a palindrome (89288298).

The spelling of 20217096 in words is "twenty million, two hundred seventeen thousand, ninety-six".