287368 has 16 divisors (see below), whose sum is σ = 570780. Its totient is φ = 135168.

The previous prime is 287347. The next prime is 287383. The reversal of 287368 is 863782.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 272484 + 14884 = 522^2 + 122^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a d-powerful number, because it can be written as 2⁹ + 8 + 3⁸ + 7³ + 6⁷ + 8 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921 + ... + 1192.

2²⁸⁷³⁶⁸ is an apocalyptic number.

It is an amenable number.

287368 is a deficient number, since it is larger than the sum of its proper divisors (283412).

287368 is a wasteful number, since it uses less digits than its factorization.

287368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136 (or 2132 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 287368 is about 536.0671599716. The cubic root of 287368 is about 65.9902036271.

It can be divided in two parts, 2873 and 68, that multiplied together give a square (195364 = 442²).

The spelling of 287368 in words is "two hundred eighty-seven thousand, three hundred sixty-eight".