26486939 has 2 divisors, whose sum is σ = 26486940. Its totient is φ = 26486938.

The previous prime is 26486923. The next prime is 26486953. The reversal of 26486939 is 93968462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26486939 - 2⁴ = 26486923 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 26486893 and 26486902.

It is not a weakly prime, because it can be changed into another prime (26486039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13243469 + 13243470.

It is an arithmetic number, because the mean of its divisors is an integer number (13243470).

Almost surely, 2^26486939 is an apocalyptic number.

26486939 is a deficient number, since it is larger than the sum of its proper divisors (1).

26486939 is an equidigital number, since it uses as much as digits as its factorization.

26486939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 47.

The square root of 26486939 is about 5146.5463176775. The cubic root of 26486939 is about 298.0876091826.

The spelling of 26486939 in words is "twenty-six million, four hundred eighty-six thousand, nine hundred thirty-nine".