20717082 has 12 divisors (see below), whose sum is σ = 44887050. Its totient is φ = 6905688.

The previous prime is 20717063. The next prime is 20717093. The reversal of 20717082 is 28071702.

It can be written as a sum of positive squares in only one way, i.e., 17065161 + 3651921 = 4131^2 + 1911^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 575457 + ... + 575492.

Almost surely, 2^20717082 is an apocalyptic number.

20717082 is an abundant number, since it is smaller than the sum of its proper divisors (24169968).

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

20717082 is a wasteful number, since it uses less digits than its factorization.

20717082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150957 (or 1150954 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 20717082 is about 4551.6021355123. The cubic root of 20717082 is about 274.6478445513.

Adding to 20717082 its reverse (28071702), we get a palindrome (48788784).

The spelling of 20717082 in words is "twenty million, seven hundred seventeen thousand, eighty-two".