811396 has 12 divisors (see below), whose sum is σ = 1433740. Its totient is φ = 401760.

The previous prime is 811387. The next prime is 811411. The reversal of 811396 is 693118.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 193600 + 617796 = 440^2 + 786^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 8 + 1 + 3¹² + 1 + 9 + 6⁷ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495 + ... + 1366.

2⁸¹¹³⁹⁶ is an apocalyptic number.

It is an amenable number.

811396 is a deficient number, since it is larger than the sum of its proper divisors (622344).

811396 is a wasteful number, since it uses less digits than its factorization.

811396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974 (or 1972 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 811396 is about 900.7752216841. The cubic root of 811396 is about 93.2704962529.

The spelling of 811396 in words is "eight hundred eleven thousand, three hundred ninety-six".