987430 has 16 divisors (see below), whose sum is σ = 1871280. Its totient is φ = 374112.

The previous prime is 987391. The next prime is 987433. The reversal of 987430 is 34789.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 15.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 987392 and 987401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987433) by changing a digit.

987430 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2409 + ... + 2788.

It is an arithmetic number, because the mean of its divisors is an integer number (116955).

2⁹⁸⁷⁴³⁰ is an apocalyptic number.

987430 is a deficient number, since it is larger than the sum of its proper divisors (883850).

987430 is a wasteful number, since it uses less digits than its factorization.

987430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5223.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 987430 is about 993.6951242710. The cubic root of 987430 is about 99.5792320263.

The spelling of 987430 in words is "nine hundred eighty-seven thousand, four hundred thirty".