662686093 has 2 divisors, whose sum is σ = 662686094. Its totient is φ = 662686092.

The previous prime is 662686091. The next prime is 662686109. The reversal of 662686093 is 390686266.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 347375044 + 315311049 = 18638^2 + 17757^2 .

It is a cyclic number.

It is not a de Polignac number, because 662686093 - 2¹ = 662686091 is a prime.

Together with 662686091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662686091) 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 as a sum of consecutive naturals, namely, 331343046 + 331343047.

It is an arithmetic number, because the mean of its divisors is an integer number (331343047).

Almost surely, 2^662686093 is an apocalyptic number.

It is an amenable number.

662686093 is a deficient number, since it is larger than the sum of its proper divisors (1).

662686093 is an equidigital number, since it uses as much as digits as its factorization.

662686093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 662686093 is about 25742.6900886446. The cubic root of 662686093 is about 871.8383170514.

It can be divided in two parts, 66268 and 6093, that added together give a square (72361 = 269²).

The spelling of 662686093 in words is "six hundred sixty-two million, six hundred eighty-six thousand, ninety-three".