805243741 has 4 divisors (see below), whose sum is σ = 818892000. Its totient is φ = 791595484.

The previous prime is 805243727. The next prime is 805243759. The reversal of 805243741 is 147342508.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-805243741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 805243697 and 805243706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805243711) 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, 6824041 + ... + 6824158.

It is an arithmetic number, because the mean of its divisors is an integer number (204723000).

Almost surely, 2^805243741 is an apocalyptic number.

It is an amenable number.

805243741 is a deficient number, since it is larger than the sum of its proper divisors (13648259).

805243741 is a wasteful number, since it uses less digits than its factorization.

805243741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13648258.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 805243741 is about 28376.8169638527. The cubic root of 805243741 is about 930.3416253691.

The spelling of 805243741 in words is "eight hundred five million, two hundred forty-three thousand, seven hundred forty-one".