987229 has 4 divisors (see below), whose sum is σ = 1030176. Its totient is φ = 944284.

The previous prime is 987227. The next prime is 987251. The reversal of 987229 is 922789.

987229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 987229 - 2¹ = 987227 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21439 + ... + 21484.

It is an arithmetic number, because the mean of its divisors is an integer number (257544).

2⁹⁸⁷²²⁹ is an apocalyptic number.

It is an amenable number.

987229 is a deficient number, since it is larger than the sum of its proper divisors (42947).

987229 is a wasteful number, since it uses less digits than its factorization.

987229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42946.

The product of its digits is 18144, while the sum is 37.

The square root of 987229 is about 993.5939814633. The cubic root of 987229 is about 99.5724748270.

The spelling of 987229 in words is "nine hundred eighty-seven thousand, two hundred twenty-nine".