284355725 has 6 divisors (see below), whose sum is σ = 352601130. Its totient is φ = 227484560.

The previous prime is 284355707. The next prime is 284355727. The reversal of 284355725 is 527553482.

It can be written as a sum of positive squares in 3 ways, for example, as 63952009 + 220403716 = 7997^2 + 14846^2 .

It is not a de Polignac number, because 284355725 - 2⁶ = 284355661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284355727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5687090 + ... + 5687139.

It is an arithmetic number, because the mean of its divisors is an integer number (58766855).

Almost surely, 2^284355725 is an apocalyptic number.

284355725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

284355725 is a deficient number, since it is larger than the sum of its proper divisors (68245405).

284355725 is a wasteful number, since it uses less digits than its factorization.

284355725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11374239 (or 11374234 counting only the distinct ones).

The product of its digits is 336000, while the sum is 41.

The square root of 284355725 is about 16862.8504411324. The cubic root of 284355725 is about 657.5881707431.

The spelling of 284355725 in words is "two hundred eighty-four million, three hundred fifty-five thousand, seven hundred twenty-five".