26228657 has 8 divisors (see below), whose sum is σ = 32281536. Its totient is φ = 20752272.

The previous prime is 26228651. The next prime is 26228659. The reversal of 26228657 is 75682262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26228657 - 2⁶ = 26228593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26228657.

It is not an unprimeable number, because it can be changed into a prime (26228651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144023 + ... + 144204.

It is an arithmetic number, because the mean of its divisors is an integer number (4035192).

Almost surely, 2^26228657 is an apocalyptic number.

It is an amenable number.

26228657 is a deficient number, since it is larger than the sum of its proper divisors (6052879).

26228657 is a wasteful number, since it uses less digits than its factorization.

26228657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288247.

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

The square root of 26228657 is about 5121.3920959052. The cubic root of 26228657 is about 297.1155290515.

The spelling of 26228657 in words is "twenty-six million, two hundred twenty-eight thousand, six hundred fifty-seven".