287683649 has 8 divisors (see below), whose sum is σ = 316615392. Its totient is φ = 259215040.

The previous prime is 287683637. The next prime is 287683651. The reversal of 287683649 is 946386782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 287683649 - 2¹⁶ = 287618113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 287683649.

It is not an unprimeable number, because it can be changed into a prime (287683619) 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 7 ways as a sum of consecutive naturals, for example, 114479 + ... + 116964.

It is an arithmetic number, because the mean of its divisors is an integer number (39576924).

Almost surely, 2^287683649 is an apocalyptic number.

It is an amenable number.

287683649 is a deficient number, since it is larger than the sum of its proper divisors (28931743).

287683649 is a wasteful number, since it uses less digits than its factorization.

287683649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231567.

The product of its digits is 3483648, while the sum is 53.

The square root of 287683649 is about 16961.2396068212. The cubic root of 287683649 is about 660.1435630460.

The spelling of 287683649 in words is "two hundred eighty-seven million, six hundred eighty-three thousand, six hundred forty-nine".