287764652 has 90 divisors (see below), whose sum is σ = 627502428. Its totient is φ = 115429104.

The previous prime is 287764639. The next prime is 287764663. The reversal of 287764652 is 256467782.

It is a super-2 number, since 2×287764652² = 165616989881362208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 287764597 and 287764606.

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 29 ways as a sum of consecutive naturals, for example, 3467003 + ... + 3467085.

Almost surely, 2^287764652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 287764652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313751214).

287764652 is an abundant number, since it is smaller than the sum of its proper divisors (339737776).

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

287764652 is an equidigital number, since it uses as much as digits as its factorization.

287764652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 111 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 47.

The square root of 287764652 is about 16963.6273243667. The cubic root of 287764652 is about 660.2055160410.

The spelling of 287764652 in words is "two hundred eighty-seven million, seven hundred sixty-four thousand, six hundred fifty-two".