849915043 has 2 divisors, whose sum is σ = 849915044. Its totient is φ = 849915042.

The previous prime is 849915037. The next prime is 849915061. The reversal of 849915043 is 340519948.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 849915043 - 2¹³ = 849906851 is a prime.

It is not a weakly prime, because it can be changed into another prime (849915643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424957521 + 424957522.

It is an arithmetic number, because the mean of its divisors is an integer number (424957522).

Almost surely, 2^849915043 is an apocalyptic number.

849915043 is a deficient number, since it is larger than the sum of its proper divisors (1).

849915043 is an equidigital number, since it uses as much as digits as its factorization.

849915043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 849915043 is about 29153.3024372883. The cubic root of 849915043 is about 947.2366765000.

The spelling of 849915043 in words is "eight hundred forty-nine million, nine hundred fifteen thousand, forty-three".