987258456 has 56 divisors (see below), whose sum is σ = 2775411180. Its totient is φ = 329084208.

The previous prime is 987258451. The next prime is 987258469. The reversal of 987258456 is 654852789.

987258456 is a `hidden beast` number, since 9 + 8 + 7 + 2 + 584 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987258451) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 78810 + ... + 90473.

Almost surely, 2^987258456 is an apocalyptic number.

It is an amenable number.

987258456 is an abundant number, since it is smaller than the sum of its proper divisors (1788152724).

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

987258456 is a wasteful number, since it uses less digits than its factorization.

987258456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169307 (or 169288 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The square root of 987258456 is about 31420.6692481239. The cubic root of 987258456 is about 995.7346513342.

The spelling of 987258456 in words is "nine hundred eighty-seven million, two hundred fifty-eight thousand, four hundred fifty-six".