26770109 has 4 divisors (see below), whose sum is σ = 26802204. Its totient is φ = 26738016.

The previous prime is 26770099. The next prime is 26770147. The reversal of 26770109 is 90107762.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24226084 + 2544025 = 4922^2 + 1595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26770109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26770169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14762 + ... + 16475.

It is an arithmetic number, because the mean of its divisors is an integer number (6700551).

Almost surely, 2^26770109 is an apocalyptic number.

It is an amenable number.

26770109 is a deficient number, since it is larger than the sum of its proper divisors (32095).

26770109 is an equidigital number, since it uses as much as digits as its factorization.

26770109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32094.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 26770109 is about 5173.9838615906. The cubic root of 26770109 is about 299.1461238092.

The spelling of 26770109 in words is "twenty-six million, seven hundred seventy thousand, one hundred nine".