287969706 has 48 divisors (see below), whose sum is σ = 656308224. Its totient is φ = 91076832.

The previous prime is 287969701. The next prime is 287969707. The reversal of 287969706 is 607969782.

It is not an unprimeable number, because it can be changed into a prime (287969701) 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 23 ways as a sum of consecutive naturals, for example, 49840 + ... + 55316.

It is an arithmetic number, because the mean of its divisors is an integer number (13673088).

Almost surely, 2^287969706 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 287969706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328154112).

287969706 is an abundant number, since it is smaller than the sum of its proper divisors (368338518).

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

287969706 is a wasteful number, since it uses less digits than its factorization.

287969706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5635 (or 5632 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 287969706 is about 16969.6701794702. The cubic root of 287969706 is about 660.3622942022.

The spelling of 287969706 in words is "two hundred eighty-seven million, nine hundred sixty-nine thousand, seven hundred six".