287730063 has 20 divisors (see below), whose sum is σ = 430276000. Its totient is φ = 191616192.

The previous prime is 287730061. The next prime is 287730073. The reversal of 287730063 is 360037782.

It is not a de Polignac number, because 287730063 - 2¹ = 287730061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287730061) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 142938 + ... + 144936.

It is an arithmetic number, because the mean of its divisors is an integer number (21513800).

Almost surely, 2^287730063 is an apocalyptic number.

287730063 is a deficient number, since it is larger than the sum of its proper divisors (142545937).

287730063 is a wasteful number, since it uses less digits than its factorization.

287730063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788 (or 3779 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 287730063 is about 16962.6077888985. The cubic root of 287730063 is about 660.1790629847.

The spelling of 287730063 in words is "two hundred eighty-seven million, seven hundred thirty thousand, sixty-three".