26820313 has 8 divisors (see below), whose sum is σ = 28929600. Its totient is φ = 24717648.

The previous prime is 26820293. The next prime is 26820317. The reversal of 26820313 is 31302862.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26820313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26820317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9678 + ... + 12136.

It is an arithmetic number, because the mean of its divisors is an integer number (3616200).

Almost surely, 2^26820313 is an apocalyptic number.

It is an amenable number.

26820313 is a deficient number, since it is larger than the sum of its proper divisors (2109287).

26820313 is a wasteful number, since it uses less digits than its factorization.

26820313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3311.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 26820313 is about 5178.8331697401. The cubic root of 26820313 is about 299.3330107762. Note that the first 3 decimals are identical.

Adding to 26820313 its product of nonzero digits (1728), we get a square (26822041 = 5179²).

The spelling of 26820313 in words is "twenty-six million, eight hundred twenty thousand, three hundred thirteen".