204107639 has 8 divisors (see below), whose sum is σ = 207024960. Its totient is φ = 201198816.

The previous prime is 204107599. The next prime is 204107641. The reversal of 204107639 is 936701402.

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 204107639 - 2⁸ = 204107383 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 (204107339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58097 + ... + 61509.

It is an arithmetic number, because the mean of its divisors is an integer number (25878120).

Almost surely, 2^204107639 is an apocalyptic number.

204107639 is a deficient number, since it is larger than the sum of its proper divisors (2917321).

204107639 is an equidigital number, since it uses as much as digits as its factorization.

204107639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4249.

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

The square root of 204107639 is about 14286.6244788613. The cubic root of 204107639 is about 588.7800503352.

The spelling of 204107639 in words is "two hundred four million, one hundred seven thousand, six hundred thirty-nine".