203880987 has 12 divisors (see below), whose sum is σ = 301678104. Its totient is φ = 132605280.

The previous prime is 203880979. The next prime is 203881003. The reversal of 203880987 is 789088302.

It is not a de Polignac number, because 203880987 - 2³ = 203880979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203880907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275893 + ... + 276630.

It is an arithmetic number, because the mean of its divisors is an integer number (25139842).

Almost surely, 2^203880987 is an apocalyptic number.

203880987 is a deficient number, since it is larger than the sum of its proper divisors (97797117).

203880987 is a wasteful number, since it uses less digits than its factorization.

203880987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552570 (or 552567 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 203880987 is about 14278.6899609173. The cubic root of 203880987 is about 588.5620320335.

The spelling of 203880987 in words is "two hundred three million, eight hundred eighty thousand, nine hundred eighty-seven".