287336672 has 72 divisors (see below), whose sum is σ = 665162064. Its totient is φ = 119688192.

The previous prime is 287336671. The next prime is 287336683. The reversal of 287336672 is 276633782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287336671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306188 + ... + 307124.

It is an arithmetic number, because the mean of its divisors is an integer number (9238362).

Almost surely, 2^287336672 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 287336672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332581032).

287336672 is an abundant number, since it is smaller than the sum of its proper divisors (377825392).

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

287336672 is an equidigital number, since it uses as much as digits as its factorization.

287336672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028 (or 983 counting only the distinct ones).

The product of its digits is 508032, while the sum is 44.

The square root of 287336672 is about 16951.0079936268. The cubic root of 287336672 is about 659.8780552175.

The spelling of 287336672 in words is "two hundred eighty-seven million, three hundred thirty-six thousand, six hundred seventy-two".