26672321 has 8 divisors (see below), whose sum is σ = 29048040. Its totient is φ = 24342912.

The previous prime is 26672309. The next prime is 26672329. The reversal of 26672321 is 12327662.

It can be written as a sum of positive squares in 4 ways, for example, as 774400 + 25897921 = 880^2 + 5089^2 .

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 26672321 - 2¹⁸ = 26410177 is a prime.

It is a super-2 number, since 2×26672321² = 1422825415054082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26672329) 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, 10370 + ... + 12683.

It is an arithmetic number, because the mean of its divisors is an integer number (3631005).

Almost surely, 2^26672321 is an apocalyptic number.

It is an amenable number.

26672321 is a deficient number, since it is larger than the sum of its proper divisors (2375719).

26672321 is a wasteful number, since it uses less digits than its factorization.

26672321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23155.

The product of its digits is 6048, while the sum is 29.

The square root of 26672321 is about 5164.5252443957. The cubic root of 26672321 is about 298.7814310750.

Adding to 26672321 its reverse (12327662), we get a palindrome (38999983).

The spelling of 26672321 in words is "twenty-six million, six hundred seventy-two thousand, three hundred twenty-one".