287049002 has 4 divisors (see below), whose sum is σ = 430573506. Its totient is φ = 143524500.

The previous prime is 287048999. The next prime is 287049043. The reversal of 287049002 is 200940782.

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., 177449041 + 109599961 = 13321^2 + 10469^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 287049002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71762249 + ... + 71762252.

Almost surely, 2^287049002 is an apocalyptic number.

287049002 is a deficient number, since it is larger than the sum of its proper divisors (143524504).

287049002 is a wasteful number, since it uses less digits than its factorization.

287049002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143524503.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 287049002 is about 16942.5205326716. The cubic root of 287049002 is about 659.6577671686.

Adding to 287049002 its reverse (200940782), we get a palindrome (487989784).

The spelling of 287049002 in words is "two hundred eighty-seven million, forty-nine thousand, two".