849523 has 2 divisors, whose sum is σ = 849524. Its totient is φ = 849522.

The previous prime is 849481. The next prime is 849533. The reversal of 849523 is 325948.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-849523 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (849533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424761 + 424762.

It is an arithmetic number, because the mean of its divisors is an integer number (424762).

2⁸⁴⁹⁵²³ is an apocalyptic number.

849523 is a deficient number, since it is larger than the sum of its proper divisors (1).

849523 is an equidigital number, since it uses as much as digits as its factorization.

849523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 849523 is about 921.6957198555. The cubic root of 849523 is about 94.7091009148.

The spelling of 849523 in words is "eight hundred forty-nine thousand, five hundred twenty-three".