839946241 has 4 divisors (see below), whose sum is σ = 841630000. Its totient is φ = 838262484.

The previous prime is 839946221. The next prime is 839946257. The reversal of 839946241 is 142649938.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 142649938 = 2 ⋅71324969.

It is a cyclic number.

It is not a de Polignac number, because 839946241 - 2⁷ = 839946113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 839946191 and 839946200.

It is not an unprimeable number, because it can be changed into a prime (839946221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841131 + ... + 842128.

It is an arithmetic number, because the mean of its divisors is an integer number (210407500).

Almost surely, 2^839946241 is an apocalyptic number.

It is an amenable number.

839946241 is a deficient number, since it is larger than the sum of its proper divisors (1683759).

839946241 is a wasteful number, since it uses less digits than its factorization.

839946241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683758.

The product of its digits is 373248, while the sum is 46.

The square root of 839946241 is about 28981.8260466797. The cubic root of 839946241 is about 943.5186671807.

The spelling of 839946241 in words is "eight hundred thirty-nine million, nine hundred forty-six thousand, two hundred forty-one".