26947471 has 2 divisors, whose sum is σ = 26947472. Its totient is φ = 26947470.

The previous prime is 26947469. The next prime is 26947493. The reversal of 26947471 is 17474962.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26947471 - 2¹ = 26947469 is a prime.

It is a super-3 number, since 3×26947471³ (a number of 23 digits) contains 333 as substring.

Together with 26947469, it forms a pair of twin primes.

It is equal to p_1679962 and since 26947471 and 1679962 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26947441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13473735 + 13473736.

It is an arithmetic number, because the mean of its divisors is an integer number (13473736).

Almost surely, 2^26947471 is an apocalyptic number.

26947471 is a deficient number, since it is larger than the sum of its proper divisors (1).

26947471 is an equidigital number, since it uses as much as digits as its factorization.

26947471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 40.

The square root of 26947471 is about 5191.0953564734. The cubic root of 26947471 is about 299.8053218435.

The spelling of 26947471 in words is "twenty-six million, nine hundred forty-seven thousand, four hundred seventy-one".