287427 has 8 divisors (see below), whose sum is σ = 438016. Its totient is φ = 164232.

The previous prime is 287393. The next prime is 287437. The reversal of 287427 is 724782.

287427 is nontrivially palindromic in base 14.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 287427 - 2¹⁴ = 271043 is a prime.

It is a super-2 number, since 2×287427² = 165228560658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 287394 and 287403.

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 287427.

It is not an unprimeable number, because it can be changed into a prime (287437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6823 + ... + 6864.

It is an arithmetic number, because the mean of its divisors is an integer number (54752).

2²⁸⁷⁴²⁷ is an apocalyptic number.

287427 is a deficient number, since it is larger than the sum of its proper divisors (150589).

287427 is a wasteful number, since it uses less digits than its factorization.

287427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13697.

The product of its digits is 6272, while the sum is 30.

The square root of 287427 is about 536.1221875655. The cubic root of 287427 is about 65.9947195041.

The spelling of 287427 in words is "two hundred eighty-seven thousand, four hundred twenty-seven".