284686965 has 12 divisors (see below), whose sum is σ = 493457484. Its totient is φ = 151833024.

The previous prime is 284686841. The next prime is 284686967. The reversal of 284686965 is 569686482.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 134722449 + 149964516 = 11607^2 + 12246^2 .

It is not a de Polignac number, because 284686965 - 2¹³ = 284678773 is a prime.

It is a super-2 number, since 2×284686965² = 162093336081822450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284686967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3163144 + ... + 3163233.

It is an arithmetic number, because the mean of its divisors is an integer number (41121457).

Almost surely, 2^284686965 is an apocalyptic number.

It is an amenable number.

284686965 is a deficient number, since it is larger than the sum of its proper divisors (208770519).

284686965 is a wasteful number, since it uses less digits than its factorization.

284686965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6326388 (or 6326385 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 284686965 is about 16872.6691723627. The cubic root of 284686965 is about 657.8434085356.

The spelling of 284686965 in words is "two hundred eighty-four million, six hundred eighty-six thousand, nine hundred sixty-five".