26680497 has 16 divisors (see below), whose sum is σ = 37775232. Its totient is φ = 16692480.

The previous prime is 26680469. The next prime is 26680517. The reversal of 26680497 is 79408662.

It is not a de Polignac number, because 26680497 - 2⁷ = 26680369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26680417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27108 + ... + 28074.

It is an arithmetic number, because the mean of its divisors is an integer number (2360952).

Almost surely, 2^26680497 is an apocalyptic number.

It is an amenable number.

26680497 is a deficient number, since it is larger than the sum of its proper divisors (11094735).

26680497 is a wasteful number, since it uses less digits than its factorization.

26680497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 26680497 is about 5165.3167376261. The cubic root of 26680497 is about 298.8119569451.

The spelling of 26680497 in words is "twenty-six million, six hundred eighty thousand, four hundred ninety-seven".