26406223 has 2 divisors, whose sum is σ = 26406224. Its totient is φ = 26406222.

The previous prime is 26406199. The next prime is 26406283. The reversal of 26406223 is 32260462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26406223 - 2⁹ = 26405711 is a prime.

It is a super-2 number, since 2×26406223² = 1394577226251458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26406283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13203111 + 13203112.

It is an arithmetic number, because the mean of its divisors is an integer number (13203112).

Almost surely, 2^26406223 is an apocalyptic number.

26406223 is a deficient number, since it is larger than the sum of its proper divisors (1).

26406223 is an equidigital number, since it uses as much as digits as its factorization.

26406223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 26406223 is about 5138.6985706500. The cubic root of 26406223 is about 297.7845048056.

Adding to 26406223 its reverse (32260462), we get a palindrome (58666685).

It can be divided in two parts, 2640622 and 3, that added together give a square (2640625 = 1625²).

The spelling of 26406223 in words is "twenty-six million, four hundred six thousand, two hundred twenty-three".