662084389 has 2 divisors, whose sum is σ = 662084390. Its totient is φ = 662084388.

The previous prime is 662084351. The next prime is 662084399. The reversal of 662084389 is 983480266.

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., 399320289 + 262764100 = 19983^2 + 16210^2 .

It is a cyclic number.

It is not a de Polignac number, because 662084389 - 2¹³ = 662076197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662084399) 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, 331042194 + 331042195.

It is an arithmetic number, because the mean of its divisors is an integer number (331042195).

Almost surely, 2^662084389 is an apocalyptic number.

It is an amenable number.

662084389 is a deficient number, since it is larger than the sum of its proper divisors (1).

662084389 is an equidigital number, since it uses as much as digits as its factorization.

662084389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 662084389 is about 25731.0005440908. Note that the first 3 decimals coincide. The cubic root of 662084389 is about 871.5743673171.

The spelling of 662084389 in words is "six hundred sixty-two million, eighty-four thousand, three hundred eighty-nine".