284399825 has 6 divisors (see below), whose sum is σ = 352655814. Its totient is φ = 227519840.

The previous prime is 284399813. The next prime is 284399879. The reversal of 284399825 is 528993482.

It can be written as a sum of positive squares in 3 ways, for example, as 5329 + 284394496 = 73^2 + 16864^2 .

It is not a de Polignac number, because 284399825 - 2⁸ = 284399569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5687972 + ... + 5688021.

It is an arithmetic number, because the mean of its divisors is an integer number (58775969).

Almost surely, 2^284399825 is an apocalyptic number.

284399825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

284399825 is a deficient number, since it is larger than the sum of its proper divisors (68255989).

284399825 is a wasteful number, since it uses less digits than its factorization.

284399825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11376003 (or 11375998 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The square root of 284399825 is about 16864.1579985483. The cubic root of 284399825 is about 657.6221635401.

The spelling of 284399825 in words is "two hundred eighty-four million, three hundred ninety-nine thousand, eight hundred twenty-five".