10200639 has 4 divisors (see below), whose sum is σ = 13600856. Its totient is φ = 6800424.

The previous prime is 10200637. The next prime is 10200679. The reversal of 10200639 is 93600201.

10200639 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10200639 - 2¹ = 10200637 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 (10200637) 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, 1700104 + ... + 1700109.

It is an arithmetic number, because the mean of its divisors is an integer number (3400214).

Almost surely, 2^10200639 is an apocalyptic number.

10200639 is a deficient number, since it is larger than the sum of its proper divisors (3400217).

10200639 is an equidigital number, since it uses as much as digits as its factorization.

10200639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400216.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 10200639 is about 3193.8439222980. The cubic root of 10200639 is about 216.8748171924.

The spelling of 10200639 in words is "ten million, two hundred thousand, six hundred thirty-nine".