2678855 has 4 divisors (see below), whose sum is σ = 3214632. Its totient is φ = 2143080.

The previous prime is 2678839. The next prime is 2678873. The reversal of 2678855 is 5588762.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2678855 - 2⁴ = 2678839 is a prime.

It is a super-2 number, since 2×2678855² = 14352528222050, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267881 + ... + 267890.

It is an arithmetic number, because the mean of its divisors is an integer number (803658).

2^2678855 is an apocalyptic number.

2678855 is a deficient number, since it is larger than the sum of its proper divisors (535777).

2678855 is an equidigital number, since it uses as much as digits as its factorization.

2678855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535776.

The product of its digits is 134400, while the sum is 41.

The square root of 2678855 is about 1636.7208069796. The cubic root of 2678855 is about 138.8832067601.

The spelling of 2678855 in words is "two million, six hundred seventy-eight thousand, eight hundred fifty-five".