842809203 has 6 divisors (see below), whose sum is σ = 1217391084. Its totient is φ = 561872796.

The previous prime is 842809193. The next prime is 842809207. The reversal of 842809203 is 302908248.

It is not a de Polignac number, because 842809203 - 2⁸ = 842808947 is a prime.

It is a super-2 number, since 2×842809203² = 1420654705322990418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (842809207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46822725 + ... + 46822742.

It is an arithmetic number, because the mean of its divisors is an integer number (202898514).

Almost surely, 2^842809203 is an apocalyptic number.

842809203 is a deficient number, since it is larger than the sum of its proper divisors (374581881).

842809203 is a wasteful number, since it uses less digits than its factorization.

842809203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93645473 (or 93645470 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 842809203 is about 29031.1763971080. The cubic root of 842809203 is about 944.5894479331.

The spelling of 842809203 in words is "eight hundred forty-two million, eight hundred nine thousand, two hundred three".