918463849 has 2 divisors, whose sum is σ = 918463850. Its totient is φ = 918463848.

The previous prime is 918463829. The next prime is 918463883. The reversal of 918463849 is 948364819.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 603046249 + 315417600 = 24557^2 + 17760^2 .

It is a cyclic number.

It is not a de Polignac number, because 918463849 - 2¹¹ = 918461801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 918463796 and 918463805.

It is not a weakly prime, because it can be changed into another prime (918463829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459231924 + 459231925.

It is an arithmetic number, because the mean of its divisors is an integer number (459231925).

Almost surely, 2^918463849 is an apocalyptic number.

It is an amenable number.

918463849 is a deficient number, since it is larger than the sum of its proper divisors (1).

918463849 is an equidigital number, since it uses as much as digits as its factorization.

918463849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 52.

The square root of 918463849 is about 30306.1684975188. The cubic root of 918463849 is about 972.0472046176.

The spelling of 918463849 in words is "nine hundred eighteen million, four hundred sixty-three thousand, eight hundred forty-nine".