34639 has 8 divisors (see below), whose sum is σ = 39168. Its totient is φ = 30360.

The previous prime is 34631. The next prime is 34649. The reversal of 34639 is 93643.

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

It is not a de Polignac number, because 34639 - 2³ = 34631 is a prime.

It is a Duffinian number.

34639 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34631) 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, 484 + ... + 550.

It is an arithmetic number, because the mean of its divisors is an integer number (4896).

2³⁴⁶³⁹ is an apocalyptic number.

34639 is a deficient number, since it is larger than the sum of its proper divisors (4529).

34639 is a wasteful number, since it uses less digits than its factorization.

34639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125.

The product of its digits is 1944, while the sum is 25.

The square root of 34639 is about 186.1155555025. The cubic root of 34639 is about 32.5978118395.

The spelling of 34639 in words is "thirty-four thousand, six hundred thirty-nine".