10408639 has 8 divisors (see below), whose sum is σ = 10633680. Its totient is φ = 10186176.

The previous prime is 10408589. The next prime is 10408649. The reversal of 10408639 is 93680401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10408639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10408639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10408649) 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, 8977 + ... + 10069.

It is an arithmetic number, because the mean of its divisors is an integer number (1329210).

Almost surely, 2^10408639 is an apocalyptic number.

10408639 is a deficient number, since it is larger than the sum of its proper divisors (225041).

10408639 is a wasteful number, since it uses less digits than its factorization.

10408639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 10408639 is about 3226.2422413700. The cubic root of 10408639 is about 218.3389992638.

The spelling of 10408639 in words is "ten million, four hundred eight thousand, six hundred thirty-nine".