26478679 has 2 divisors, whose sum is σ = 26478680. Its totient is φ = 26478678.

The previous prime is 26478659. The next prime is 26478691. The reversal of 26478679 is 97687462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26478679 - 2⁹ = 26478167 is a prime.

It is a super-2 number, since 2×26478679² = 1402240883170082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26478649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13239339 + 13239340.

It is an arithmetic number, because the mean of its divisors is an integer number (13239340).

Almost surely, 2^26478679 is an apocalyptic number.

26478679 is a deficient number, since it is larger than the sum of its proper divisors (1).

26478679 is an equidigital number, since it uses as much as digits as its factorization.

26478679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 49.

The square root of 26478679 is about 5145.7437751991. The cubic root of 26478679 is about 298.0566195736.

The spelling of 26478679 in words is "twenty-six million, four hundred seventy-eight thousand, six hundred seventy-nine".