287612 has 12 divisors (see below), whose sum is σ = 542136. Its totient is φ = 132720.

The previous prime is 287611. The next prime is 287629. The reversal of 287612 is 216782.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 287612.

It is not an unprimeable number, because it can be changed into a prime (287611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2714 + ... + 2817.

It is an arithmetic number, because the mean of its divisors is an integer number (45178).

2²⁸⁷⁶¹² is an apocalyptic number.

It is an amenable number.

287612 is a deficient number, since it is larger than the sum of its proper divisors (254524).

287612 is a wasteful number, since it uses less digits than its factorization.

287612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5548 (or 5546 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 287612 is about 536.2946951071. The cubic root of 287612 is about 66.0088754516.

The spelling of 287612 in words is "two hundred eighty-seven thousand, six hundred twelve".