26260643 has 4 divisors (see below), whose sum is σ = 26271480. Its totient is φ = 26249808.

The previous prime is 26260621. The next prime is 26260657. The reversal of 26260643 is 34606262.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34606262 = 2 ⋅17303131.

It is a cyclic number.

It is not a de Polignac number, because 26260643 - 2⁶ = 26260579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26260673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71 + ... + 7247.

It is an arithmetic number, because the mean of its divisors is an integer number (6567870).

Almost surely, 2^26260643 is an apocalyptic number.

26260643 is a deficient number, since it is larger than the sum of its proper divisors (10837).

26260643 is an equidigital number, since it uses as much as digits as its factorization.

26260643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10836.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 26260643 is about 5124.5139281692. The cubic root of 26260643 is about 297.2362580277.

The spelling of 26260643 in words is "twenty-six million, two hundred sixty thousand, six hundred forty-three".