26457 has 4 divisors (see below), whose sum is σ = 35280. Its totient is φ = 17636.

The previous prime is 26449. The next prime is 26459. The reversal of 26457 is 75462.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26457 - 2³ = 26449 is a prime.

It is a D-number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (26459) 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, 4407 + ... + 4412.

It is an arithmetic number, because the mean of its divisors is an integer number (8820).

2²⁶⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

26457 is a deficient number, since it is larger than the sum of its proper divisors (8823).

26457 is an equidigital number, since it uses as much as digits as its factorization.

26457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8822.

The product of its digits is 1680, while the sum is 24.

The square root of 26457 is about 162.6560788904. The cubic root of 26457 is about 29.7975254315.

The spelling of 26457 in words is "twenty-six thousand, four hundred fifty-seven".