20760093 has 6 divisors (see below), whose sum is σ = 29986814. Its totient is φ = 13840056.

The previous prime is 20760083. The next prime is 20760097. The reversal of 20760093 is 39006702.

It can be written as a sum of positive squares in only one way, i.e., 14424804 + 6335289 = 3798^2 + 2517^2 .

It is not a de Polignac number, because 20760093 - 2⁶ = 20760029 is a prime.

It is a super-2 number, since 2×20760093² = 861962922737298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20760097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1153330 + ... + 1153347.

Almost surely, 2^20760093 is an apocalyptic number.

It is an amenable number.

20760093 is a deficient number, since it is larger than the sum of its proper divisors (9226721).

20760093 is a wasteful number, since it uses less digits than its factorization.

20760093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306683 (or 2306680 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 20760093 is about 4556.3245055637. The cubic root of 20760093 is about 274.8377798086.

Adding to 20760093 its reverse (39006702), we get a palindrome (59766795).

The spelling of 20760093 in words is "twenty million, seven hundred sixty thousand, ninety-three".