849724823 has 2 divisors, whose sum is σ = 849724824. Its totient is φ = 849724822.

The previous prime is 849724807. The next prime is 849724847. The reversal of 849724823 is 328427948.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 849724823 - 2⁴ = 849724807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (849724873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424862411 + 424862412.

It is an arithmetic number, because the mean of its divisors is an integer number (424862412).

Almost surely, 2^849724823 is an apocalyptic number.

849724823 is a deficient number, since it is larger than the sum of its proper divisors (1).

849724823 is an equidigital number, since it uses as much as digits as its factorization.

849724823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 47.

The square root of 849724823 is about 29150.0398455988. The cubic root of 849724823 is about 947.1660040228.

The spelling of 849724823 in words is "eight hundred forty-nine million, seven hundred twenty-four thousand, eight hundred twenty-three".