811472 has 20 divisors (see below), whose sum is σ = 1611876. Its totient is φ = 395520.

The previous prime is 811469. The next prime is 811493. The reversal of 811472 is 274118.

It can be written as a sum of positive squares in 2 ways, for example, as 287296 + 524176 = 536^2 + 724^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38 + ... + 1274.

2⁸¹¹⁴⁷² is an apocalyptic number.

811472 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

811472 is a deficient number, since it is larger than the sum of its proper divisors (800404).

811472 is a wasteful number, since it uses less digits than its factorization.

811472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1280 counting only the distinct ones).

The product of its digits is 448, while the sum is 23.

The square root of 811472 is about 900.8174065814. The cubic root of 811472 is about 93.2734082451.

The spelling of 811472 in words is "eight hundred eleven thousand, four hundred seventy-two".