26893421 has 4 divisors (see below), whose sum is σ = 26907552. Its totient is φ = 26879292.

The previous prime is 26893387. The next prime is 26893429. The reversal of 26893421 is 12439862.

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 26893421 - 2¹⁸ = 26631277 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 (26893429) 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, 3665 + ... + 8198.

It is an arithmetic number, because the mean of its divisors is an integer number (6726888).

Almost surely, 2^26893421 is an apocalyptic number.

It is an amenable number.

26893421 is a deficient number, since it is larger than the sum of its proper divisors (14131).

26893421 is a wasteful number, since it uses less digits than its factorization.

26893421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14130.

The product of its digits is 20736, while the sum is 35.

The square root of 26893421 is about 5185.8867129933. The cubic root of 26893421 is about 299.6047424298.

The spelling of 26893421 in words is "twenty-six million, eight hundred ninety-three thousand, four hundred twenty-one".