26668379 has 4 divisors (see below), whose sum is σ = 27389184. Its totient is φ = 25947576.

The previous prime is 26668373. The next prime is 26668387. The reversal of 26668379 is 97386662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26668379 - 2¹⁶ = 26602843 is a prime.

It is a super-2 number, since 2×26668379² = 1422404876975282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26668373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360347 + ... + 360420.

It is an arithmetic number, because the mean of its divisors is an integer number (6847296).

Almost surely, 2^26668379 is an apocalyptic number.

26668379 is a deficient number, since it is larger than the sum of its proper divisors (720805).

26668379 is an equidigital number, since it uses as much as digits as its factorization.

26668379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720804.

The product of its digits is 653184, while the sum is 47.

The square root of 26668379 is about 5164.1435882438. The cubic root of 26668379 is about 298.7667110159.

The spelling of 26668379 in words is "twenty-six million, six hundred sixty-eight thousand, three hundred seventy-nine".