284091025 has 9 divisors (see below), whose sum is σ = 352377403. Its totient is φ = 227205400.

The previous prime is 284091023. The next prime is 284091043. The reversal of 284091025 is 520190482.

The square root of 284091025 is 16855.

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., 102272769 + 181818256 = 10113^2 + 13484^2 .

It is not a de Polignac number, because 284091025 - 2¹ = 284091023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284091023) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 82590 + ... + 85960.

Almost surely, 2^284091025 is an apocalyptic number.

284091025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

284091025 is the 16855-th square number.

284091025 is the 8428-th centered octagonal number.

It is an amenable number.

284091025 is a deficient number, since it is larger than the sum of its proper divisors (68286378).

284091025 is an frugal number, since it uses more digits than its factorization.

284091025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6752 (or 3376 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The cubic root of 284091025 is about 657.3840629865.

The spelling of 284091025 in words is "two hundred eighty-four million, ninety-one thousand, twenty-five".