262822661 has 2 divisors, whose sum is σ = 262822662. Its totient is φ = 262822660.

The previous prime is 262822627. The next prime is 262822663. The reversal of 262822661 is 166228262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256192036 + 6630625 = 16006^2 + 2575^2 .

It is a cyclic number.

It is not a de Polignac number, because 262822661 - 2¹⁸ = 262560517 is a prime.

It is a super-2 number, since 2×262822661² = 138151502270241842, which contains 22 as substring.

Together with 262822663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (262822663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131411330 + 131411331.

It is an arithmetic number, because the mean of its divisors is an integer number (131411331).

Almost surely, 2^262822661 is an apocalyptic number.

It is an amenable number.

262822661 is a deficient number, since it is larger than the sum of its proper divisors (1).

262822661 is an equidigital number, since it uses as much as digits as its factorization.

262822661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 35.

The square root of 262822661 is about 16211.8062226268. The cubic root of 262822661 is about 640.5518198097.

The spelling of 262822661 in words is "two hundred sixty-two million, eight hundred twenty-two thousand, six hundred sixty-one".