662201489 has 2 divisors, whose sum is σ = 662201490. Its totient is φ = 662201488.

The previous prime is 662201483. The next prime is 662201531. The reversal of 662201489 is 984102266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488410000 + 173791489 = 22100^2 + 13183^2 .

It is a cyclic number.

It is not a de Polignac number, because 662201489 - 2⁸ = 662201233 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_34394762 and since 662201489 and 34394762 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (662201483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331100744 + 331100745.

It is an arithmetic number, because the mean of its divisors is an integer number (331100745).

Almost surely, 2^662201489 is an apocalyptic number.

It is an amenable number.

662201489 is a deficient number, since it is larger than the sum of its proper divisors (1).

662201489 is an equidigital number, since it uses as much as digits as its factorization.

662201489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 662201489 is about 25733.2759088306. The cubic root of 662201489 is about 871.6257481500.

The spelling of 662201489 in words is "six hundred sixty-two million, two hundred one thousand, four hundred eighty-nine".