282878761 has 15 divisors (see below), whose sum is σ = 313419405. Its totient is φ = 255312420.

The previous prime is 282878753. The next prime is 282878767. The reversal of 282878761 is 167878282.

The square root of 282878761 is 16819.

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

It is not a de Polignac number, because 282878761 - 2³ = 282878753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (282878767) by changing a digit.

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 14 ways as a sum of consecutive naturals, for example, 2035030 + ... + 2035168.

It is an arithmetic number, because the mean of its divisors is an integer number (20894627).

Almost surely, 2^282878761 is an apocalyptic number.

282878761 is the 16819-th square number.

282878761 is the 8410-th centered octagonal number.

It is an amenable number.

282878761 is a deficient number, since it is larger than the sum of its proper divisors (30540644).

282878761 is an frugal number, since it uses more digits than its factorization.

282878761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 150 counting only the distinct ones).

The product of its digits is 602112, while the sum is 49.

The cubic root of 282878761 is about 656.4476738330.

Multiplying 282878761 by its sum of digits (49), we get a square (13861059289 = 117733²).

The spelling of 282878761 in words is "two hundred eighty-two million, eight hundred seventy-eight thousand, seven hundred sixty-one".