26945643 has 8 divisors (see below), whose sum is σ = 35964928. Its totient is φ = 17945064.

The previous prime is 26945623. The next prime is 26945647. The reversal of 26945643 is 34654962.

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

It is not a de Polignac number, because 26945643 - 2⁶ = 26945579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26945647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 871 + ... + 7392.

It is an arithmetic number, because the mean of its divisors is an integer number (4495616).

Almost surely, 2^26945643 is an apocalyptic number.

26945643 is a deficient number, since it is larger than the sum of its proper divisors (9019285).

26945643 is a wasteful number, since it uses less digits than its factorization.

26945643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9353.

The product of its digits is 155520, while the sum is 39.

The square root of 26945643 is about 5190.9192827475. The cubic root of 26945643 is about 299.7985425243.

The spelling of 26945643 in words is "twenty-six million, nine hundred forty-five thousand, six hundred forty-three".