204113987 has 16 divisors (see below), whose sum is σ = 254943744. Its totient is φ = 158760000.

The previous prime is 204113963. The next prime is 204113989. The reversal of 204113987 is 789311402.

It is not a de Polignac number, because 204113987 - 2⁸ = 204113731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204113989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46487 + ... + 50687.

It is an arithmetic number, because the mean of its divisors is an integer number (15933984).

Almost surely, 2^204113987 is an apocalyptic number.

204113987 is a deficient number, since it is larger than the sum of its proper divisors (50829757).

204113987 is a wasteful number, since it uses less digits than its factorization.

204113987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 204113987 is about 14286.8466429790. The cubic root of 204113987 is about 588.7861542011.

The spelling of 204113987 in words is "two hundred four million, one hundred thirteen thousand, nine hundred eighty-seven".