805027405 has 16 divisors (see below), whose sum is σ = 1188964224. Its totient is φ = 509555520.

The previous prime is 805027387. The next prime is 805027409. The reversal of 805027405 is 504720508.

It is not a de Polignac number, because 805027405 - 2¹³ = 805019213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805027409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 884191 + ... + 885100.

It is an arithmetic number, because the mean of its divisors is an integer number (74310264).

Almost surely, 2^805027405 is an apocalyptic number.

It is an amenable number.

805027405 is a deficient number, since it is larger than the sum of its proper divisors (383936819).

805027405 is a wasteful number, since it uses less digits than its factorization.

805027405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769316.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 805027405 is about 28373.0048637785. The cubic root of 805027405 is about 930.2583030149.

The spelling of 805027405 in words is "eight hundred five million, twenty-seven thousand, four hundred five".