803987 has 2 divisors, whose sum is σ = 803988. Its totient is φ = 803986.

The previous prime is 803977. The next prime is 803989. The reversal of 803987 is 789308.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 803987 - 2⁸ = 803731 is a prime.

Together with 803989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (803989) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401993 + 401994.

It is an arithmetic number, because the mean of its divisors is an integer number (401994).

2⁸⁰³⁹⁸⁷ is an apocalyptic number.

803987 is a deficient number, since it is larger than the sum of its proper divisors (1).

803987 is an equidigital number, since it uses as much as digits as its factorization.

803987 is an evil number, because the sum of its binary digits is even.

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

The square root of 803987 is about 896.6532217084. The cubic root of 803987 is about 92.9857379756.

The spelling of 803987 in words is "eight hundred three thousand, nine hundred eighty-seven".