287675328 has 28 divisors (see below), whose sum is σ = 761141480. Its totient is φ = 95891712.

The previous prime is 287675321. The next prime is 287675341. The reversal of 287675328 is 823576782.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287675321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748963 + ... + 749346.

Almost surely, 2^287675328 is an apocalyptic number.

It is an amenable number.

287675328 is an abundant number, since it is smaller than the sum of its proper divisors (473466152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

287675328 is a wasteful number, since it uses less digits than its factorization.

287675328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498324 (or 1498314 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 287675328 is about 16960.9943104760. The cubic root of 287675328 is about 660.1371982914.

The spelling of 287675328 in words is "two hundred eighty-seven million, six hundred seventy-five thousand, three hundred twenty-eight".