842795047 has 4 divisors (see below), whose sum is σ = 869982016. Its totient is φ = 815608080.

The previous prime is 842795017. The next prime is 842795081. The reversal of 842795047 is 740597248.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 842795047 - 2¹¹ = 842792999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 842794988 and 842795006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842795017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13593438 + ... + 13593499.

It is an arithmetic number, because the mean of its divisors is an integer number (217495504).

Almost surely, 2^842795047 is an apocalyptic number.

842795047 is a deficient number, since it is larger than the sum of its proper divisors (27186969).

842795047 is a wasteful number, since it uses less digits than its factorization.

842795047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27186968.

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 842795047 is about 29030.9325892228. The cubic root of 842795047 is about 944.5841593961.

The spelling of 842795047 in words is "eight hundred forty-two million, seven hundred ninety-five thousand, forty-seven".