287402 has 16 divisors (see below), whose sum is σ = 466560. Its totient is φ = 132288.

The previous prime is 287393. The next prime is 287437. The reversal of 287402 is 204782.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 287402.

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, 2633 + ... + 2739.

It is an arithmetic number, because the mean of its divisors is an integer number (29160).

2²⁸⁷⁴⁰² is an apocalyptic number.

287402 is a deficient number, since it is larger than the sum of its proper divisors (179158).

287402 is a wasteful number, since it uses less digits than its factorization.

287402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 287402 is about 536.0988714780. The cubic root of 287402 is about 65.9928060723.

The spelling of 287402 in words is "two hundred eighty-seven thousand, four hundred two".