26605487 has 2 divisors, whose sum is σ = 26605488. Its totient is φ = 26605486.

The previous prime is 26605477. The next prime is 26605489. The reversal of 26605487 is 78450662.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26605487 - 2¹⁶ = 26539951 is a prime.

Together with 26605489, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26605487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26605489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13302743 + 13302744.

It is an arithmetic number, because the mean of its divisors is an integer number (13302744).

Almost surely, 2^26605487 is an apocalyptic number.

26605487 is a deficient number, since it is larger than the sum of its proper divisors (1).

26605487 is an equidigital number, since it uses as much as digits as its factorization.

26605487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 26605487 is about 5158.0506976958. The cubic root of 26605487 is about 298.5316657811.

The spelling of 26605487 in words is "twenty-six million, six hundred five thousand, four hundred eighty-seven".