26216671 has 16 divisors (see below), whose sum is σ = 29268288. Its totient is φ = 23328000.

The previous prime is 26216657. The next prime is 26216677. The reversal of 26216671 is 17661262.

It is a happy number.

It is a 8-Lehmer number, since φ(26216671) divides (26216671-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 26216671 - 2⁵ = 26216639 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 (26216677) 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 15 ways as a sum of consecutive naturals, for example, 53590 + ... + 54076.

It is an arithmetic number, because the mean of its divisors is an integer number (1829268).

Almost surely, 2^26216671 is an apocalyptic number.

26216671 is a deficient number, since it is larger than the sum of its proper divisors (3051617).

26216671 is a wasteful number, since it uses less digits than its factorization.

26216671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642.

The product of its digits is 6048, while the sum is 31.

The square root of 26216671 is about 5120.2217725407. The cubic root of 26216671 is about 297.0702634305.

The spelling of 26216671 in words is "twenty-six million, two hundred sixteen thousand, six hundred seventy-one".