284635081 has 2 divisors, whose sum is σ = 284635082. Its totient is φ = 284635080.

The previous prime is 284635037. The next prime is 284635093. The reversal of 284635081 is 180536482.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256640400 + 27994681 = 16020^2 + 5291^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-284635081 is a prime.

It is a super-2 number, since 2×284635081² = 162034258671753122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 284635081.

It is not a weakly prime, because it can be changed into another prime (284636081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142317540 + 142317541.

It is an arithmetic number, because the mean of its divisors is an integer number (142317541).

Almost surely, 2^284635081 is an apocalyptic number.

It is an amenable number.

284635081 is a deficient number, since it is larger than the sum of its proper divisors (1).

284635081 is an equidigital number, since it uses as much as digits as its factorization.

284635081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 284635081 is about 16871.1315862333. The cubic root of 284635081 is about 657.8034422740.

The spelling of 284635081 in words is "two hundred eighty-four million, six hundred thirty-five thousand, eighty-one".