26626397 has 16 divisors (see below), whose sum is σ = 31219200. Its totient is φ = 22239360.

The previous prime is 26626381. The next prime is 26626409. The reversal of 26626397 is 79362662.

It is a cyclic number.

It is not a de Polignac number, because 26626397 - 2⁴ = 26626381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26626337) 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, 48947 + ... + 49487.

It is an arithmetic number, because the mean of its divisors is an integer number (1951200).

Almost surely, 2^26626397 is an apocalyptic number.

It is an amenable number.

26626397 is a deficient number, since it is larger than the sum of its proper divisors (4592803).

26626397 is an equidigital number, since it uses as much as digits as its factorization.

26626397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716.

The product of its digits is 163296, while the sum is 41.

The square root of 26626397 is about 5160.0772281042. The cubic root of 26626397 is about 298.6098534436.

The spelling of 26626397 in words is "twenty-six million, six hundred twenty-six thousand, three hundred ninety-seven".