26849143 has 4 divisors (see below), whose sum is σ = 26889480. Its totient is φ = 26808808.

The previous prime is 26849129. The next prime is 26849149. The reversal of 26849143 is 34194862.

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 26849143 - 2¹³ = 26840951 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 (26849149) 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 3 ways as a sum of consecutive naturals, for example, 19153 + ... + 20506.

It is an arithmetic number, because the mean of its divisors is an integer number (6722370).

Almost surely, 2^26849143 is an apocalyptic number.

26849143 is a deficient number, since it is larger than the sum of its proper divisors (40337).

26849143 is an equidigital number, since it uses as much as digits as its factorization.

26849143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40336.

The product of its digits is 41472, while the sum is 37.

The square root of 26849143 is about 5181.6158676614. The cubic root of 26849143 is about 299.4402265322.

The spelling of 26849143 in words is "twenty-six million, eight hundred forty-nine thousand, one hundred forty-three".