849461731 has 2 divisors, whose sum is σ = 849461732. Its totient is φ = 849461730.

The previous prime is 849461713. The next prime is 849461741. The reversal of 849461731 is 137164948.

Together with previous prime (849461713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 849461731 - 2¹¹ = 849459683 is a prime.

It is a super-2 number, since 2×849461731² = 1443170464867032722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (849461741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424730865 + 424730866.

It is an arithmetic number, because the mean of its divisors is an integer number (424730866).

Almost surely, 2^849461731 is an apocalyptic number.

849461731 is a deficient number, since it is larger than the sum of its proper divisors (1).

849461731 is an equidigital number, since it uses as much as digits as its factorization.

849461731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 849461731 is about 29145.5267751331. The cubic root of 849461731 is about 947.0682400117.

It can be divided in two parts, 8494 and 61731, that added together give a square (70225 = 265²).

The spelling of 849461731 in words is "eight hundred forty-nine million, four hundred sixty-one thousand, seven hundred thirty-one".