26839971 has 8 divisors (see below), whose sum is σ = 39762960. Its totient is φ = 17893296.

The previous prime is 26839963. The next prime is 26839973. The reversal of 26839971 is 17993862.

It is not a de Polignac number, because 26839971 - 2³ = 26839963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26839973) 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, 497010 + ... + 497063.

It is an arithmetic number, because the mean of its divisors is an integer number (4970370).

Almost surely, 2^26839971 is an apocalyptic number.

26839971 is a deficient number, since it is larger than the sum of its proper divisors (12922989).

26839971 is an equidigital number, since it uses as much as digits as its factorization.

26839971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994082 (or 994076 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 26839971 is about 5180.7307399632. The cubic root of 26839971 is about 299.4061251513.

The spelling of 26839971 in words is "twenty-six million, eight hundred thirty-nine thousand, nine hundred seventy-one".