287674 has 8 divisors (see below), whose sum is σ = 456948. Its totient is φ = 135360.

The previous prime is 287671. The next prime is 287681. The reversal of 287674 is 476782.

It can be written as a sum of positive squares in 2 ways, for example, as 257049 + 30625 = 507^2 + 175^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 8461 = 287674 / (2 + 8 + 7 + 6 + 7 + 4).

It is not an unprimeable number, because it can be changed into a prime (287671) 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, 4197 + ... + 4264.

2²⁸⁷⁶⁷⁴ is an apocalyptic number.

287674 is a deficient number, since it is larger than the sum of its proper divisors (169274).

287674 is a wasteful number, since it uses less digits than its factorization.

287674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8480.

The product of its digits is 18816, while the sum is 34.

The square root of 287674 is about 536.3524960322. The cubic root of 287674 is about 66.0136182489.

It can be divided in two parts, 287 and 674, that added together give a square (961 = 31²).

The spelling of 287674 in words is "two hundred eighty-seven thousand, six hundred seventy-four".