20705095 has 8 divisors (see below), whose sum is σ = 25074720. Its totient is φ = 16411680.

The previous prime is 20705081. The next prime is 20705107. The reversal of 20705095 is 59050702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20705095 - 2⁷ = 20704967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18451 + ... + 19540.

It is an arithmetic number, because the mean of its divisors is an integer number (3134340).

Almost surely, 2^20705095 is an apocalyptic number.

20705095 is a deficient number, since it is larger than the sum of its proper divisors (4369625).

20705095 is a wasteful number, since it uses less digits than its factorization.

20705095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38105.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 20705095 is about 4550.2851558996. The cubic root of 20705095 is about 274.5948634915.

Adding to 20705095 its reverse (59050702), we get a palindrome (79755797).

The spelling of 20705095 in words is "twenty million, seven hundred five thousand, ninety-five".