662700197 has 2 divisors, whose sum is σ = 662700198. Its totient is φ = 662700196.

The previous prime is 662700167. The next prime is 662700209. The reversal of 662700197 is 791007266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 434055556 + 228644641 = 20834^2 + 15121^2 .

It is a cyclic number.

It is not a de Polignac number, because 662700197 - 2¹⁰ = 662699173 is a prime.

It is a super-2 number, since 2×662700197² = 878343102207677618, 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 662700197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662700167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331350098 + 331350099.

It is an arithmetic number, because the mean of its divisors is an integer number (331350099).

Almost surely, 2^662700197 is an apocalyptic number.

It is an amenable number.

662700197 is a deficient number, since it is larger than the sum of its proper divisors (1).

662700197 is an equidigital number, since it uses as much as digits as its factorization.

662700197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 662700197 is about 25742.9640290313. The cubic root of 662700197 is about 871.8445021419.

The spelling of 662700197 in words is "six hundred sixty-two million, seven hundred thousand, one hundred ninety-seven".