26897823 has 6 divisors (see below), whose sum is σ = 38852424. Its totient is φ = 17931876.

The previous prime is 26897813. The next prime is 26897839. The reversal of 26897823 is 32879862.

It is not a de Polignac number, because 26897823 - 2⁴ = 26897807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26897803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1494315 + ... + 1494332.

It is an arithmetic number, because the mean of its divisors is an integer number (6475404).

Almost surely, 2^26897823 is an apocalyptic number.

26897823 is a deficient number, since it is larger than the sum of its proper divisors (11954601).

26897823 is a wasteful number, since it uses less digits than its factorization.

26897823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988653 (or 2988650 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 26897823 is about 5186.3111167765. The cubic root of 26897823 is about 299.6210882879.

The spelling of 26897823 in words is "twenty-six million, eight hundred ninety-seven thousand, eight hundred twenty-three".