26671493 has 2 divisors, whose sum is σ = 26671494. Its totient is φ = 26671492.

The previous prime is 26671483. The next prime is 26671507. The reversal of 26671493 is 39417662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23406244 + 3265249 = 4838^2 + 1807^2 .

It is a cyclic number.

It is not a de Polignac number, because 26671493 - 2¹² = 26667397 is a prime.

It is a super-2 number, since 2×26671493² = 1422737077698098, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_1663877 and since 26671493 and 1663877 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 (26671423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13335746 + 13335747.

It is an arithmetic number, because the mean of its divisors is an integer number (13335747).

Almost surely, 2^26671493 is an apocalyptic number.

It is an amenable number.

26671493 is a deficient number, since it is larger than the sum of its proper divisors (1).

26671493 is an equidigital number, since it uses as much as digits as its factorization.

26671493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 26671493 is about 5164.4450815165. The cubic root of 26671493 is about 298.7783393108.

The spelling of 26671493 in words is "twenty-six million, six hundred seventy-one thousand, four hundred ninety-three".