26466421 has 4 divisors (see below), whose sum is σ = 26513344. Its totient is φ = 26419500.

The previous prime is 26466383. The next prime is 26466439. The reversal of 26466421 is 12466462.

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 26466421 - 2²¹ = 24369269 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 (26467421) 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, 22605 + ... + 23746.

It is an arithmetic number, because the mean of its divisors is an integer number (6628336).

Almost surely, 2^26466421 is an apocalyptic number.

It is an amenable number.

26466421 is a deficient number, since it is larger than the sum of its proper divisors (46923).

26466421 is an equidigital number, since it uses as much as digits as its factorization.

26466421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46922.

The product of its digits is 13824, while the sum is 31.

The square root of 26466421 is about 5144.5525558595. The cubic root of 26466421 is about 298.0106185127.

The spelling of 26466421 in words is "twenty-six million, four hundred sixty-six thousand, four hundred twenty-one".