849252479 has 2 divisors, whose sum is σ = 849252480. Its totient is φ = 849252478.

The previous prime is 849252457. The next prime is 849252499. The reversal of 849252479 is 974252948.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 849252479 - 2²⁰ = 848203903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (849252419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424626239 + 424626240.

It is an arithmetic number, because the mean of its divisors is an integer number (424626240).

Almost surely, 2^849252479 is an apocalyptic number.

849252479 is a deficient number, since it is larger than the sum of its proper divisors (1).

849252479 is an equidigital number, since it uses as much as digits as its factorization.

849252479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The square root of 849252479 is about 29141.9367750326. The cubic root of 849252479 is about 946.9904683316.

The spelling of 849252479 in words is "eight hundred forty-nine million, two hundred fifty-two thousand, four hundred seventy-nine".