662085997 has 2 divisors, whose sum is σ = 662085998. Its totient is φ = 662085996.

The previous prime is 662085973. The next prime is 662086001. The reversal of 662085997 is 799580266.

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., 380484036 + 281601961 = 19506^2 + 16781^2 .

It is a cyclic number.

It is not a de Polignac number, because 662085997 - 2⁷ = 662085869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662085497) 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, 331042998 + 331042999.

It is an arithmetic number, because the mean of its divisors is an integer number (331042999).

Almost surely, 2^662085997 is an apocalyptic number.

It is an amenable number.

662085997 is a deficient number, since it is larger than the sum of its proper divisors (1).

662085997 is an equidigital number, since it uses as much as digits as its factorization.

662085997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 662085997 is about 25731.0317904277. The cubic root of 662085997 is about 871.5750729122.

The spelling of 662085997 in words is "six hundred sixty-two million, eighty-five thousand, nine hundred ninety-seven".