26857223 has 4 divisors (see below), whose sum is σ = 27180888. Its totient is φ = 26533560.

The previous prime is 26857217. The next prime is 26857249. The reversal of 26857223 is 32275862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32275862 = 2 ⋅16137931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26857223 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26857283) 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, 161708 + ... + 161873.

It is an arithmetic number, because the mean of its divisors is an integer number (6795222).

Almost surely, 2^26857223 is an apocalyptic number.

26857223 is a deficient number, since it is larger than the sum of its proper divisors (323665).

26857223 is an equidigital number, since it uses as much as digits as its factorization.

26857223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323664.

The product of its digits is 40320, while the sum is 35.

The square root of 26857223 is about 5182.3954885748. The cubic root of 26857223 is about 299.4702614371.

The spelling of 26857223 in words is "twenty-six million, eight hundred fifty-seven thousand, two hundred twenty-three".