805475 has 24 divisors (see below), whose sum is σ = 1138320. Its totient is φ = 560000.

The previous prime is 805471. The next prime is 805487. The reversal of 805475 is 574508.

It is not a de Polignac number, because 805475 - 2² = 805471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (805471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7925 + ... + 8025.

It is an arithmetic number, because the mean of its divisors is an integer number (47430).

2⁸⁰⁵⁴⁷⁵ is an apocalyptic number.

805475 is a deficient number, since it is larger than the sum of its proper divisors (332845).

805475 is a wasteful number, since it uses less digits than its factorization.

805475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 805475 is about 897.4825903604. The cubic root of 805475 is about 93.0430678853.

It can be divided in two parts, 805 and 475, that multiplied together give a triangular number (382375 = T₈₇₄).

The spelling of 805475 in words is "eight hundred five thousand, four hundred seventy-five".