26878123 has 4 divisors (see below), whose sum is σ = 26906080. Its totient is φ = 26850168.

The previous prime is 26878121. The next prime is 26878171. The reversal of 26878123 is 32187862.

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

It is a cyclic number.

It is not a de Polignac number, because 26878123 - 2¹ = 26878121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26878121) 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 3 ways as a sum of consecutive naturals, for example, 12483 + ... + 14476.

It is an arithmetic number, because the mean of its divisors is an integer number (6726520).

Almost surely, 2^26878123 is an apocalyptic number.

26878123 is a deficient number, since it is larger than the sum of its proper divisors (27957).

26878123 is an equidigital number, since it uses as much as digits as its factorization.

26878123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27956.

The product of its digits is 32256, while the sum is 37.

The square root of 26878123 is about 5184.4115384487. The cubic root of 26878123 is about 299.5479227999.

The spelling of 26878123 in words is "twenty-six million, eight hundred seventy-eight thousand, one hundred twenty-three".