287895552 has 104 divisors (see below), whose sum is σ = 877550976. Its totient is φ = 82231296.

The previous prime is 287895547. The next prime is 287895593. The reversal of 287895552 is 255598782.

It is a super-2 number, since 2×287895552² = 165767697722769408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 287895495 and 287895504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84343 + ... + 87689.

Almost surely, 2^287895552 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 287895552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438775488).

287895552 is an abundant number, since it is smaller than the sum of its proper divisors (589655424).

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

287895552 is an equidigital number, since it uses as much as digits as its factorization.

287895552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381 (or 3359 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 51.

The square root of 287895552 is about 16967.4851407037. The cubic root of 287895552 is about 660.3056068628.

The spelling of 287895552 in words is "two hundred eighty-seven million, eight hundred ninety-five thousand, five hundred fifty-two".