805268047 has 4 divisors (see below), whose sum is σ = 805431736. Its totient is φ = 805104360.

The previous prime is 805268041. The next prime is 805268069. The reversal of 805268047 is 740862508.

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 805268047 - 2¹⁹ = 804743759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805268041) 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, 74229 + ... + 84382.

It is an arithmetic number, because the mean of its divisors is an integer number (201357934).

Almost surely, 2^805268047 is an apocalyptic number.

805268047 is a deficient number, since it is larger than the sum of its proper divisors (163689).

805268047 is a wasteful number, since it uses less digits than its factorization.

805268047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163688.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 805268047 is about 28377.2452327565. The cubic root of 805268047 is about 930.3509859535.

The spelling of 805268047 in words is "eight hundred five million, two hundred sixty-eight thousand, forty-seven".