20760105 has 16 divisors (see below), whose sum is σ = 33672960. Its totient is φ = 10919808.

The previous prime is 20760101. The next prime is 20760107. The reversal of 20760105 is 50106702.

It is not a de Polignac number, because 20760105 - 2² = 20760101 is a prime.

It is a super-2 number, since 2×20760105² = 861963919222050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20760101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8385 + ... + 10574.

It is an arithmetic number, because the mean of its divisors is an integer number (2104560).

Almost surely, 2^20760105 is an apocalyptic number.

It is an amenable number.

20760105 is a deficient number, since it is larger than the sum of its proper divisors (12912855).

20760105 is a wasteful number, since it uses less digits than its factorization.

20760105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19040.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 20760105 is about 4556.3258224144. The cubic root of 20760105 is about 274.8378327636.

Adding to 20760105 its reverse (50106702), we get a palindrome (70866807).

The spelling of 20760105 in words is "twenty million, seven hundred sixty thousand, one hundred five".