2646385 has 8 divisors (see below), whose sum is σ = 3629376. Its totient is φ = 1814640.

The previous prime is 2646361. The next prime is 2646409. The reversal of 2646385 is 5836462.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2646361) and next prime (2646409).

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

It is not a de Polignac number, because 2646385 - 2⁵ = 2646353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2646385.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37771 + ... + 37840.

It is an arithmetic number, because the mean of its divisors is an integer number (453672).

2^2646385 is an apocalyptic number.

It is an amenable number.

2646385 is a deficient number, since it is larger than the sum of its proper divisors (982991).

2646385 is an equidigital number, since it uses as much as digits as its factorization.

2646385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75623.

The product of its digits is 34560, while the sum is 34.

The square root of 2646385 is about 1626.7713422605. The cubic root of 2646385 is about 138.3197967432.

The spelling of 2646385 in words is "two million, six hundred forty-six thousand, three hundred eighty-five".