26642207 has 2 divisors, whose sum is σ = 26642208. Its totient is φ = 26642206.

The previous prime is 26642171. The next prime is 26642219. The reversal of 26642207 is 70224662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26642207 - 2¹² = 26638111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26642207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26642227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13321103 + 13321104.

It is an arithmetic number, because the mean of its divisors is an integer number (13321104).

Almost surely, 2^26642207 is an apocalyptic number.

26642207 is a deficient number, since it is larger than the sum of its proper divisors (1).

26642207 is an equidigital number, since it uses as much as digits as its factorization.

26642207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 26642207 is about 5161.6089545800. The cubic root of 26642207 is about 298.6689437727.

Adding to 26642207 its reverse (70224662), we get a palindrome (96866869).

The spelling of 26642207 in words is "twenty-six million, six hundred forty-two thousand, two hundred seven".