26720107 has 16 divisors (see below), whose sum is σ = 29665440. Its totient is φ = 23951872.

The previous prime is 26720087. The next prime is 26720123. The reversal of 26720107 is 70102762.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26720107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26723107) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 40593 + ... + 41245.

It is an arithmetic number, because the mean of its divisors is an integer number (1854090).

Almost surely, 2^26720107 is an apocalyptic number.

26720107 is a deficient number, since it is larger than the sum of its proper divisors (2945333).

26720107 is a wasteful number, since it uses less digits than its factorization.

26720107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 26720107 is about 5169.1495432034. The cubic root of 26720107 is about 298.9597564059.

Adding to 26720107 its reverse (70102762), we get a palindrome (96822869).

The spelling of 26720107 in words is "twenty-six million, seven hundred twenty thousand, one hundred seven".