284063975897 has 8 divisors (see below), whose sum is σ = 323910054216. Its totient is φ = 246788612352.

The previous prime is 284063975879. The next prime is 284063975929. The reversal of 284063975897 is 798579360482.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 75743846656 + 208320129241 = 275216^2 + 456421^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 284063975897 - 2⁸ = 284063975641 is a prime.

It is a super-2 number, since 2×284063975897² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284063975597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642678458 + ... + 642678899.

It is an arithmetic number, because the mean of its divisors is an integer number (40488756777).

Almost surely, 2^284063975897 is an apocalyptic number.

It is an amenable number.

284063975897 is a deficient number, since it is larger than the sum of its proper divisors (39846078319).

284063975897 is a wasteful number, since it uses less digits than its factorization.

284063975897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285357387.

The product of its (nonzero) digits is 182891520, while the sum is 68.

The spelling of 284063975897 in words is "two hundred eighty-four billion, sixty-three million, nine hundred seventy-five thousand, eight hundred ninety-seven".