26634431 has 2 divisors, whose sum is σ = 26634432. Its totient is φ = 26634430.

The previous prime is 26634403. The next prime is 26634457. The reversal of 26634431 is 13443662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26634431 - 2⁶ = 26634367 is a prime.

It is a super-2 number, since 2×26634431² = 1418785829387522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 26634394 and 26634403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26634401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13317215 + 13317216.

It is an arithmetic number, because the mean of its divisors is an integer number (13317216).

Almost surely, 2^26634431 is an apocalyptic number.

26634431 is a deficient number, since it is larger than the sum of its proper divisors (1).

26634431 is an equidigital number, since it uses as much as digits as its factorization.

26634431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 29.

The square root of 26634431 is about 5160.8556461114. The cubic root of 26634431 is about 298.6398836715.

The spelling of 26634431 in words is "twenty-six million, six hundred thirty-four thousand, four hundred thirty-one".