287049004 has 12 divisors (see below), whose sum is σ = 548002728. Its totient is φ = 130476800.

The previous prime is 287048999. The next prime is 287049043. The reversal of 287049004 is 400940782.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3261877 + ... + 3261964.

It is an arithmetic number, because the mean of its divisors is an integer number (45666894).

Almost surely, 2^287049004 is an apocalyptic number.

It is an amenable number.

287049004 is a deficient number, since it is larger than the sum of its proper divisors (260953724).

287049004 is a wasteful number, since it uses less digits than its factorization.

287049004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6523856 (or 6523854 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 287049004 is about 16942.5205916947. The cubic root of 287049004 is about 659.6577687006.

Adding to 287049004 its reverse (400940782), we get a palindrome (687989786).

Subtracting 287049004 from its reverse (400940782), we obtain a triangular number (113891778 = T₁₅₀₉₂).

The spelling of 287049004 in words is "two hundred eighty-seven million, forty-nine thousand, four".