26312321 has 8 divisors (see below), whose sum is σ = 31654080. Its totient is φ = 21366288.

The previous prime is 26312303. The next prime is 26312323. The reversal of 26312321 is 12321362.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 26312321 - 2⁶ = 26312257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26312293 and 26312302.

It is not an unprimeable number, because it can be changed into a prime (26312323) 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, 98786 + ... + 99051.

It is an arithmetic number, because the mean of its divisors is an integer number (3956760).

Almost surely, 2^26312321 is an apocalyptic number.

It is an amenable number.

26312321 is a deficient number, since it is larger than the sum of its proper divisors (5341759).

26312321 is a wasteful number, since it uses less digits than its factorization.

26312321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197863.

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

The square root of 26312321 is about 5129.5536842887. The cubic root of 26312321 is about 297.4311061430.

Adding to 26312321 its reverse (12321362), we get a palindrome (38633683).

It can be divided in two parts, 263 and 12321, that multiplied together give a palindrome (3240423).

The spelling of 26312321 in words is "twenty-six million, three hundred twelve thousand, three hundred twenty-one".