284987280964 has 9 divisors (see below), whose sum is σ = 498729610141. Its totient is φ = 142493106640.

The previous prime is 284987280953. The next prime is 284987280967. The reversal of 284987280964 is 469082789482.

The square root of 284987280964 is 533842.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5103959364 + 279883321600 = 71442^2 + 529040^2 .

It is a super-2 number, since 2×284987280964² (a number of 24 digits) contains 22 as substring.

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 284987280964.

It is not an unprimeable number, because it can be changed into a prime (284987280967) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 934224 + ... + 1201144.

Almost surely, 2^284987280964 is an apocalyptic number.

284987280964 is the 533842-nd square number.

It is an amenable number.

284987280964 is a deficient number, since it is larger than the sum of its proper divisors (213742329177).

284987280964 is an frugal number, since it uses more digits than its factorization.

284987280964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533846 (or 266923 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 67.

The spelling of 284987280964 in words is "two hundred eighty-four billion, nine hundred eighty-seven million, two hundred eighty thousand, nine hundred sixty-four".