987432 has 16 divisors (see below), whose sum is σ = 2468640. Its totient is φ = 329136.

The previous prime is 987391. The next prime is 987433. The reversal of 987432 is 234789.

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 = 987393 and 987402.

It is not an unprimeable number, because it can be changed into a prime (987433) 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, 20548 + ... + 20595.

It is an arithmetic number, because the mean of its divisors is an integer number (154290).

2⁹⁸⁷⁴³² is an apocalyptic number.

It is an amenable number.

987432 is an abundant number, since it is smaller than the sum of its proper divisors (1481208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

987432 is a wasteful number, since it uses less digits than its factorization.

987432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41152 (or 41148 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 987432 is about 993.6961306154. The cubic root of 987432 is about 99.5792992575.

Adding to 987432 its reverse (234789), we get a palindrome (1222221).

The spelling of 987432 in words is "nine hundred eighty-seven thousand, four hundred thirty-two".