805761273 has 4 divisors (see below), whose sum is σ = 1074348368. Its totient is φ = 537174180.

The previous prime is 805761263. The next prime is 805761287. The reversal of 805761273 is 372167508.

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 not a de Polignac number, because 805761273 - 2⁵ = 805761241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805761263) 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, 134293543 + ... + 134293548.

It is an arithmetic number, because the mean of its divisors is an integer number (268587092).

Almost surely, 2^805761273 is an apocalyptic number.

It is an amenable number.

805761273 is a deficient number, since it is larger than the sum of its proper divisors (268587095).

805761273 is a wasteful number, since it uses less digits than its factorization.

805761273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268587094.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 805761273 is about 28385.9344218224. The cubic root of 805761273 is about 930.5408935842.

The spelling of 805761273 in words is "eight hundred five million, seven hundred sixty-one thousand, two hundred seventy-three".