263347984 has 15 divisors (see below), whose sum is σ = 510362517. Its totient is φ = 131641536.

The previous prime is 263347963. The next prime is 263348009. The reversal of 263347984 is 489743362.

The square root of 263347984 is 16228.

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., 135024400 + 128323584 = 11620^2 + 11328^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 62884 + ... + 66940.

Almost surely, 2^263347984 is an apocalyptic number.

263347984 is the 16228-th square number.

It is an amenable number.

263347984 is a deficient number, since it is larger than the sum of its proper divisors (247014533).

263347984 is an frugal number, since it uses more digits than its factorization.

263347984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8122 (or 4059 counting only the distinct ones).

The product of its digits is 870912, while the sum is 46.

The cubic root of 263347984 is about 640.9783084763.

The spelling of 263347984 in words is "two hundred sixty-three million, three hundred forty-seven thousand, nine hundred eighty-four".