2646855 has 24 divisors (see below), whose sum is σ = 4633200. Its totient is φ = 1397760.

The previous prime is 2646841. The next prime is 2646881. The reversal of 2646855 is 5586462.

2646855 is a `hidden beast` number, since 2 + 646 + 8 + 5 + 5 = 666.

It is not a de Polignac number, because 2646855 - 2⁸ = 2646599 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5671 + ... + 6119.

It is an arithmetic number, because the mean of its divisors is an integer number (193050).

2^2646855 is an apocalyptic number.

2646855 is a deficient number, since it is larger than the sum of its proper divisors (1986345).

2646855 is a wasteful number, since it uses less digits than its factorization.

2646855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 588 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 2646855 is about 1626.9157937644. The cubic root of 2646855 is about 138.3279848257.

The spelling of 2646855 in words is "two million, six hundred forty-six thousand, eight hundred fifty-five".