26828943 has 4 divisors (see below), whose sum is σ = 35771928. Its totient is φ = 17885960.

The previous prime is 26828929. The next prime is 26828957. The reversal of 26828943 is 34982862.

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

It is an interprime number because it is at equal distance from previous prime (26828929) and next prime (26828957).

It is a cyclic number.

It is not a de Polignac number, because 26828943 - 2⁵ = 26828911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26828895 and 26828904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26828993) 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, 4471488 + ... + 4471493.

It is an arithmetic number, because the mean of its divisors is an integer number (8942982).

Almost surely, 2^26828943 is an apocalyptic number.

26828943 is a deficient number, since it is larger than the sum of its proper divisors (8942985).

26828943 is an equidigital number, since it uses as much as digits as its factorization.

26828943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8942984.

The product of its digits is 165888, while the sum is 42.

The square root of 26828943 is about 5179.6663019928. Note that the first 3 decimals coincide. The cubic root of 26828943 is about 299.3651128979.

The spelling of 26828943 in words is "twenty-six million, eight hundred twenty-eight thousand, nine hundred forty-three".