26870109 has 16 divisors (see below), whose sum is σ = 41032320. Its totient is φ = 15321600.

The previous prime is 26870101. The next prime is 26870159. The reversal of 26870109 is 90107862.

It is not a de Polignac number, because 26870109 - 2³ = 26870101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26870109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26870101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11557 + ... + 13685.

It is an arithmetic number, because the mean of its divisors is an integer number (2564520).

Almost surely, 2^26870109 is an apocalyptic number.

It is an amenable number.

26870109 is a deficient number, since it is larger than the sum of its proper divisors (14162211).

26870109 is a wasteful number, since it uses less digits than its factorization.

26870109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 26870109 is about 5183.6385869387. The cubic root of 26870109 is about 299.5181487010.

The spelling of 26870109 in words is "twenty-six million, eight hundred seventy thousand, one hundred nine".