923987 has 2 divisors, whose sum is σ = 923988. Its totient is φ = 923986.

The previous prime is 923983. The next prime is 924019. The reversal of 923987 is 789329.

923987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 923987 - 2² = 923983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 923987.

It is not a weakly prime, because it can be changed into another prime (923983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461993 + 461994.

It is an arithmetic number, because the mean of its divisors is an integer number (461994).

2⁹²³⁹⁸⁷ is an apocalyptic number.

923987 is a deficient number, since it is larger than the sum of its proper divisors (1).

923987 is an equidigital number, since it uses as much as digits as its factorization.

923987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 923987 is about 961.2424251977. The cubic root of 923987 is about 97.3991769512.

The spelling of 923987 in words is "nine hundred twenty-three thousand, nine hundred eighty-seven".