287074 has 4 divisors (see below), whose sum is σ = 430614. Its totient is φ = 143536.

The previous prime is 287059. The next prime is 287087. The reversal of 287074 is 470782.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 275625 + 11449 = 525^2 + 107^2 .

It is a super-2 number, since 2×287074² = 164822962952, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71767 + ... + 71770.

2²⁸⁷⁰⁷⁴ is an apocalyptic number.

287074 is a deficient number, since it is larger than the sum of its proper divisors (143540).

287074 is a wasteful number, since it uses less digits than its factorization.

287074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143539.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 287074 is about 535.7928704266. The cubic root of 287074 is about 65.9676915637.

The spelling of 287074 in words is "two hundred eighty-seven thousand, seventy-four".