287965056 has 32 divisors (see below), whose sum is σ = 764908200. Its totient is φ = 95988224.

The previous prime is 287965009. The next prime is 287965087. The reversal of 287965056 is 650569782.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

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

It is a junction number, because it is equal to n+sod(n) for n = 287964996 and 287965014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374571 + ... + 375338.

Almost surely, 2^287965056 is an apocalyptic number.

It is an amenable number.

287965056 is an abundant number, since it is smaller than the sum of its proper divisors (476943144).

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

287965056 is an equidigital number, since it uses as much as digits as its factorization.

287965056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749926 (or 749914 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The square root of 287965056 is about 16969.5331697722. The cubic root of 287965056 is about 660.3587397760.

The spelling of 287965056 in words is "two hundred eighty-seven million, nine hundred sixty-five thousand, fifty-six".