399282284537 has 2 divisors, whose sum is σ = 399282284538. Its totient is φ = 399282284536.

The previous prime is 399282284509. The next prime is 399282284543. The reversal of 399282284537 is 735482282993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349492610041 + 49789674496 = 591179^2 + 223136^2 .

It is a cyclic number.

It is not a de Polignac number, because 399282284537 - 2²⁰ = 399281235961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 399282284537.

It is not a weakly prime, because it can be changed into another prime (399282284837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199641142268 + 199641142269.

It is an arithmetic number, because the mean of its divisors is an integer number (199641142269).

Almost surely, 2^399282284537 is an apocalyptic number.

It is an amenable number.

399282284537 is a deficient number, since it is larger than the sum of its proper divisors (1).

399282284537 is an equidigital number, since it uses as much as digits as its factorization.

399282284537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52254720, while the sum is 62.

The spelling of 399282284537 in words is "three hundred ninety-nine billion, two hundred eighty-two million, two hundred eighty-four thousand, five hundred thirty-seven".