849873247 has 2 divisors, whose sum is σ = 849873248. Its totient is φ = 849873246.

The previous prime is 849873209. The next prime is 849873251. The reversal of 849873247 is 742378948.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 849873247 - 2⁷ = 849873119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 849873194 and 849873203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (849873257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424936623 + 424936624.

It is an arithmetic number, because the mean of its divisors is an integer number (424936624).

Almost surely, 2^849873247 is an apocalyptic number.

849873247 is a deficient number, since it is larger than the sum of its proper divisors (1).

849873247 is an equidigital number, since it uses as much as digits as its factorization.

849873247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 52.

The square root of 849873247 is about 29152.5855971644. The cubic root of 849873247 is about 947.2211489272.

The spelling of 849873247 in words is "eight hundred forty-nine million, eight hundred seventy-three thousand, two hundred forty-seven".