26666896 has 15 divisors (see below), whose sum is σ = 51707163. Its totient is φ = 13323120.

The previous prime is 26666869. The next prime is 26666917. The reversal of 26666896 is 69866662.

It is a happy number.

The square root of 26666896 is 5164.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×26666896² = 1422246684549632, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 20011 + ... + 21301.

Almost surely, 2^26666896 is an apocalyptic number.

26666896 is the 5164-th square number.

It is an amenable number.

26666896 is a deficient number, since it is larger than the sum of its proper divisors (25040267).

26666896 is an frugal number, since it uses more digits than its factorization.

26666896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590 (or 1293 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 49.

The cubic root of 26666896 is about 298.7611728809.

Multiplying 26666896 by its sum of digits (49), we get a square (1306677904 = 36148²).

The spelling of 26666896 in words is "twenty-six million, six hundred sixty-six thousand, eight hundred ninety-six".