849728863 has 2 divisors, whose sum is σ = 849728864. Its totient is φ = 849728862.

The previous prime is 849728843. The next prime is 849728903. The reversal of 849728863 is 368827948.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 849728863 - 2²¹ = 847631711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (849728843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424864431 + 424864432.

It is an arithmetic number, because the mean of its divisors is an integer number (424864432).

Almost surely, 2^849728863 is an apocalyptic number.

849728863 is a deficient number, since it is larger than the sum of its proper divisors (1).

849728863 is an equidigital number, since it uses as much as digits as its factorization.

849728863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4644864, while the sum is 55.

The square root of 849728863 is about 29150.1091421627. The cubic root of 849728863 is about 947.1675051145.

The spelling of 849728863 in words is "eight hundred forty-nine million, seven hundred twenty-eight thousand, eight hundred sixty-three".