662957 has 2 divisors, whose sum is σ = 662958. Its totient is φ = 662956.

The previous prime is 662953. The next prime is 662999. The reversal of 662957 is 759266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 662596 + 361 = 814^2 + 19^2 .

It is a cyclic number.

It is not a de Polignac number, because 662957 - 2² = 662953 is a prime.

It is a d-powerful number, because it can be written as 6³ + 6³ + 9⁶ + 2¹⁷ + 5 + 7 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331478 + 331479.

It is an arithmetic number, because the mean of its divisors is an integer number (331479).

2⁶⁶²⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

662957 is a deficient number, since it is larger than the sum of its proper divisors (1).

662957 is an equidigital number, since it uses as much as digits as its factorization.

662957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 662957 is about 814.2217142769. The cubic root of 662957 is about 87.1957103773.

The spelling of 662957 in words is "six hundred sixty-two thousand, nine hundred fifty-seven".