26421463 has 2 divisors, whose sum is σ = 26421464. Its totient is φ = 26421462.

The previous prime is 26421427. The next prime is 26421469. The reversal of 26421463 is 36412462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26421463 - 2¹⁷ = 26290391 is a prime.

It is a super-3 number, since 3×26421463³ (a number of 23 digits) contains 333 as substring.

It is equal to p_1649224 and since 26421463 and 1649224 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 (26421469) 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 as a sum of consecutive naturals, namely, 13210731 + 13210732.

It is an arithmetic number, because the mean of its divisors is an integer number (13210732).

Almost surely, 2^26421463 is an apocalyptic number.

26421463 is a deficient number, since it is larger than the sum of its proper divisors (1).

26421463 is an equidigital number, since it uses as much as digits as its factorization.

26421463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 28.

The square root of 26421463 is about 5140.1812224862. The cubic root of 26421463 is about 297.8417812422.

Subtracting 26421463 from its reverse (36412462), we obtain a palindrome (9990999).

The spelling of 26421463 in words is "twenty-six million, four hundred twenty-one thousand, four hundred sixty-three".