287487612 has 72 divisors (see below), whose sum is σ = 777237552. Its totient is φ = 89280000.

The previous prime is 287487611. The next prime is 287487631. The reversal of 287487612 is 216784782.

287487612 is a `hidden beast` number, since 28 + 7 + 4 + 8 + 7 + 612 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287487611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59487 + ... + 64137.

It is an arithmetic number, because the mean of its divisors is an integer number (10794966).

Almost surely, 2^287487612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 287487612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388618776).

287487612 is an abundant number, since it is smaller than the sum of its proper divisors (489749940).

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

287487612 is a wasteful number, since it uses less digits than its factorization.

287487612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779 (or 4774 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 287487612 is about 16955.4596516874. The cubic root of 287487612 is about 659.9935812048.

The spelling of 287487612 in words is "two hundred eighty-seven million, four hundred eighty-seven thousand, six hundred twelve".