2678646 has 8 divisors (see below), whose sum is σ = 5357304. Its totient is φ = 892880.

The previous prime is 2678629. The next prime is 2678651. The reversal of 2678646 is 6468762.

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

2678646 is an admirable 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, 223215 + ... + 223226.

It is an arithmetic number, because the mean of its divisors is an integer number (669663).

2^2678646 is an apocalyptic number.

2678646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2678646 is a wasteful number, since it uses less digits than its factorization.

2678646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446446.

The product of its digits is 96768, while the sum is 39.

The square root of 2678646 is about 1636.6569585591. The cubic root of 2678646 is about 138.8795948507.

The spelling of 2678646 in words is "two million, six hundred seventy-eight thousand, six hundred forty-six".