2678634 has 36 divisors (see below), whose sum is σ = 6753474. Its totient is φ = 765072.

The previous prime is 2678629. The next prime is 2678651. The reversal of 2678634 is 4368762.

It can be written as a sum of positive squares in only one way, i.e., 1863225 + 815409 = 1365^2 + 903^2 .

It is a d-powerful number, because it can be written as 2²¹ + 6³ + 7⁴ + 8³ + 6⁶ + 3¹² + 4⁴ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 637 + ... + 2400.

2^2678634 is an apocalyptic number.

2678634 is an abundant number, since it is smaller than the sum of its proper divisors (4074840).

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

2678634 is a wasteful number, since it uses less digits than its factorization.

2678634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059 (or 3049 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 2678634 is about 1636.6532925455. The cubic root of 2678634 is about 138.8793874626.

The spelling of 2678634 in words is "two million, six hundred seventy-eight thousand, six hundred thirty-four".