26896139 has 4 divisors (see below), whose sum is σ = 27076800. Its totient is φ = 26715480.

The previous prime is 26896117. The next prime is 26896183. The reversal of 26896139 is 93169862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93169862 = 2 ⋅46584931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26896139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26896139.

It is not an unprimeable number, because it can be changed into a prime (26896109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90107 + ... + 90404.

It is an arithmetic number, because the mean of its divisors is an integer number (6769200).

Almost surely, 2^26896139 is an apocalyptic number.

26896139 is a deficient number, since it is larger than the sum of its proper divisors (180661).

26896139 is a wasteful number, since it uses less digits than its factorization.

26896139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180660.

The product of its digits is 139968, while the sum is 44.

The square root of 26896139 is about 5186.1487637745. The cubic root of 26896139 is about 299.6148353352.

The spelling of 26896139 in words is "twenty-six million, eight hundred ninety-six thousand, one hundred thirty-nine".