987693 has 12 divisors (see below), whose sum is σ = 1532160. Its totient is φ = 564312.

The previous prime is 987659. The next prime is 987697. The reversal of 987693 is 396789.

It is a happy number.

987693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 987693 - 2¹² = 983597 is a prime.

It is a Curzon number.

987693 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 987693.

It is not an unprimeable number, because it can be changed into a prime (987697) 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, 3213 + ... + 3506.

It is an arithmetic number, because the mean of its divisors is an integer number (127680).

2⁹⁸⁷⁶⁹³ is an apocalyptic number.

It is an amenable number.

987693 is a deficient number, since it is larger than the sum of its proper divisors (544467).

987693 is a wasteful number, since it uses less digits than its factorization.

987693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6736 (or 6729 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 987693 is about 993.8274498121. The cubic root of 987693 is about 99.5880721511.

The spelling of 987693 in words is "nine hundred eighty-seven thousand, six hundred ninety-three".