2686397 has 8 divisors (see below), whose sum is σ = 3081600. Its totient is φ = 2294064.

The previous prime is 2686393. The next prime is 2686451. The reversal of 2686397 is 7936862.

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 2686397 - 2² = 2686393 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6² + 8⁷ + 6⁶ + 3⁶ + 9³ + 7⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686393) 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, 1979 + ... + 3047.

It is an arithmetic number, because the mean of its divisors is an integer number (385200).

2^2686397 is an apocalyptic number.

It is an amenable number.

2686397 is a deficient number, since it is larger than the sum of its proper divisors (395203).

2686397 is a wasteful number, since it uses less digits than its factorization.

2686397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435.

The product of its digits is 108864, while the sum is 41.

The square root of 2686397 is about 1639.0231847048. The cubic root of 2686397 is about 139.0134210597.

The spelling of 2686397 in words is "two million, six hundred eighty-six thousand, three hundred ninety-seven".