26213321 has 8 divisors (see below), whose sum is σ = 27143424. Its totient is φ = 25288560.

The previous prime is 26213251. The next prime is 26213339. The reversal of 26213321 is 12331262.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-26213321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26213293 and 26213302.

It is not an unprimeable number, because it can be changed into a prime (26213381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10430 + ... + 12696.

It is an arithmetic number, because the mean of its divisors is an integer number (3392928).

Almost surely, 2^26213321 is an apocalyptic number.

It is an amenable number.

26213321 is a deficient number, since it is larger than the sum of its proper divisors (930103).

26213321 is a wasteful number, since it uses less digits than its factorization.

26213321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671.

The product of its digits is 432, while the sum is 20.

The square root of 26213321 is about 5119.8946278219. The cubic root of 26213321 is about 297.0576095512.

Adding to 26213321 its reverse (12331262), we get a palindrome (38544583).

The spelling of 26213321 in words is "twenty-six million, two hundred thirteen thousand, three hundred twenty-one".