662261 has 2 divisors, whose sum is σ = 662262. Its totient is φ = 662260.

The previous prime is 662251. The next prime is 662267. The reversal of 662261 is 162266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 481636 + 180625 = 694^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 662261 - 2¹⁰ = 661237 is a prime.

It is equal to p₅₃₇₃₅ and since 662261 and 53735 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662267) 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, 331130 + 331131.

It is an arithmetic number, because the mean of its divisors is an integer number (331131).

2⁶⁶²²⁶¹ is an apocalyptic number.

It is an amenable number.

662261 is a deficient number, since it is larger than the sum of its proper divisors (1).

662261 is an equidigital number, since it uses as much as digits as its factorization.

662261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 662261 is about 813.7942000285. The cubic root of 662261 is about 87.1651857910.

The spelling of 662261 in words is "six hundred sixty-two thousand, two hundred sixty-one".