26891893 has 8 divisors (see below), whose sum is σ = 30823488. Its totient is φ = 22982784.

The previous prime is 26891861. The next prime is 26891927. The reversal of 26891893 is 39819862.

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 26891893 - 2⁵ = 26891861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26891693) 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, 2971 + ... + 7912.

It is an arithmetic number, because the mean of its divisors is an integer number (3852936).

Almost surely, 2^26891893 is an apocalyptic number.

It is an amenable number.

26891893 is a deficient number, since it is larger than the sum of its proper divisors (3931595).

26891893 is a wasteful number, since it uses less digits than its factorization.

26891893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11243.

The product of its digits is 186624, while the sum is 46.

The square root of 26891893 is about 5185.7393879755. The cubic root of 26891893 is about 299.5990681212.

It can be divided in two parts, 268918 and 93, that added together give a triangular number (269011 = T₇₃₃).

The spelling of 26891893 in words is "twenty-six million, eight hundred ninety-one thousand, eight hundred ninety-three".