2174639 has 8 divisors (see below), whose sum is σ = 2251392. Its totient is φ = 2099160.

The previous prime is 2174629. The next prime is 2174647. The reversal of 2174639 is 9364712.

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

It is a cyclic number.

It is not a de Polignac number, because 2174639 - 2⁸ = 2174383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2174609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4184 + ... + 4674.

It is an arithmetic number, because the mean of its divisors is an integer number (281424).

2^2174639 is an apocalyptic number.

2174639 is a deficient number, since it is larger than the sum of its proper divisors (76753).

2174639 is a wasteful number, since it uses less digits than its factorization.

2174639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637.

The product of its digits is 9072, while the sum is 32.

The square root of 2174639 is about 1474.6657248339. The cubic root of 2174639 is about 129.5574498010.

The spelling of 2174639 in words is "two million, one hundred seventy-four thousand, six hundred thirty-nine".