287951916 has 96 divisors (see below), whose sum is σ = 855912960. Its totient is φ = 73350144.

The previous prime is 287951893. The next prime is 287951941. The reversal of 287951916 is 619159782.

287951916 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21826 + ... + 32438.

It is an arithmetic number, because the mean of its divisors is an integer number (8915760).

Almost surely, 2^287951916 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 287951916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427956480).

287951916 is an abundant number, since it is smaller than the sum of its proper divisors (567961044).

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

287951916 is a wasteful number, since it uses less digits than its factorization.

287951916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10663 (or 10661 counting only the distinct ones).

The product of its digits is 272160, while the sum is 48.

The square root of 287951916 is about 16969.1460009041. The cubic root of 287951916 is about 660.3486954487.

The spelling of 287951916 in words is "two hundred eighty-seven million, nine hundred fifty-one thousand, nine hundred sixteen".