287672764 has 12 divisors (see below), whose sum is σ = 512926344. Its totient is φ = 141122384.

The previous prime is 287672729. The next prime is 287672773. The reversal of 287672764 is 467276782.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678262 + ... + 678685.

It is an arithmetic number, because the mean of its divisors is an integer number (42743862).

Almost surely, 2^287672764 is an apocalyptic number.

It is an amenable number.

287672764 is a deficient number, since it is larger than the sum of its proper divisors (225253580).

287672764 is a wasteful number, since it uses less digits than its factorization.

287672764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357004 (or 1357002 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 49.

The square root of 287672764 is about 16960.9187251163. The cubic root of 287672764 is about 660.1352370563.

The spelling of 287672764 in words is "two hundred eighty-seven million, six hundred seventy-two thousand, seven hundred sixty-four".