2674639 has 4 divisors (see below), whose sum is σ = 2917800. Its totient is φ = 2431480.

The previous prime is 2674631. The next prime is 2674673. The reversal of 2674639 is 9364762.

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

It is a cyclic number.

It is not a de Polignac number, because 2674639 - 2³ = 2674631 is a prime.

It is a d-powerful number, because it can be written as 2 + 6⁷ + 7⁴ + 4⁶ + 6⁸ + 3¹¹ + 9⁶ .

It is a Duffinian number.

2674639 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2674598 and 2674607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2674631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121564 + ... + 121585.

It is an arithmetic number, because the mean of its divisors is an integer number (729450).

2^2674639 is an apocalyptic number.

2674639 is a deficient number, since it is larger than the sum of its proper divisors (243161).

2674639 is a wasteful number, since it uses less digits than its factorization.

2674639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243160.

The product of its digits is 54432, while the sum is 37.

The square root of 2674639 is about 1635.4323587358. The cubic root of 2674639 is about 138.8103100636.

The spelling of 2674639 in words is "two million, six hundred seventy-four thousand, six hundred thirty-nine".