523210349 has 2 divisors, whose sum is σ = 523210350. Its totient is φ = 523210348.

The previous prime is 523210333. The next prime is 523210351. The reversal of 523210349 is 943012325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 522122500 + 1087849 = 22850^2 + 1043^2 .

It is a cyclic number.

It is not a de Polignac number, because 523210349 - 2⁴ = 523210333 is a prime.

It is a super-4 number, since 4×523210349⁴ (a number of 36 digits) contains 4444 as substring.

It is a Sophie Germain prime.

Together with 523210351, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523210379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261605174 + 261605175.

It is an arithmetic number, because the mean of its divisors is an integer number (261605175).

Almost surely, 2^523210349 is an apocalyptic number.

It is an amenable number.

523210349 is a deficient number, since it is larger than the sum of its proper divisors (1).

523210349 is an equidigital number, since it uses as much as digits as its factorization.

523210349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 523210349 is about 22873.7917495111. The cubic root of 523210349 is about 805.7966209758.

The spelling of 523210349 in words is "five hundred twenty-three million, two hundred ten thousand, three hundred forty-nine".