10208639 has 8 divisors (see below), whose sum is σ = 11781120. Its totient is φ = 8664696.

The previous prime is 10208629. The next prime is 10208647. The reversal of 10208639 is 93680201.

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 10208639 - 2¹² = 10204543 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 (10208629) 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, 6359 + ... + 7800.

It is an arithmetic number, because the mean of its divisors is an integer number (1472640).

Almost surely, 2^10208639 is an apocalyptic number.

10208639 is a deficient number, since it is larger than the sum of its proper divisors (1572481).

10208639 is a wasteful number, since it uses less digits than its factorization.

10208639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14269.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 10208639 is about 3195.0960861921. The cubic root of 10208639 is about 216.9314981241.

The spelling of 10208639 in words is "ten million, two hundred eight thousand, six hundred thirty-nine".