662281 has 2 divisors, whose sum is σ = 662282. Its totient is φ = 662280.

The previous prime is 662267. The next prime is 662287. The reversal of 662281 is 182266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 577600 + 84681 = 760^2 + 291^2 .

It is a cyclic number.

It is not a de Polignac number, because 662281 - 2⁹ = 661769 is a prime.

It is a super-2 number, since 2×662281² = 877232245922, which contains 22 as substring.

It is equal to p₅₃₇₃₇ and since 662281 and 53737 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 (662287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331140 + 331141.

It is an arithmetic number, because the mean of its divisors is an integer number (331141).

2⁶⁶²²⁸¹ is an apocalyptic number.

It is an amenable number.

662281 is a deficient number, since it is larger than the sum of its proper divisors (1).

662281 is an equidigital number, since it uses as much as digits as its factorization.

662281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 662281 is about 813.8064880547. The cubic root of 662281 is about 87.1660632327.

The spelling of 662281 in words is "six hundred sixty-two thousand, two hundred eighty-one".