813744 has 30 divisors (see below), whose sum is σ = 2277756. Its totient is φ = 271200.

The previous prime is 813721. The next prime is 813749. The reversal of 813744 is 447318.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 813744.

It is not an unprimeable number, because it can be changed into a prime (813749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2682 + ... + 2969.

2⁸¹³⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

813744 is an abundant number, since it is smaller than the sum of its proper divisors (1464012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

813744 is a wasteful number, since it uses less digits than its factorization.

813744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5665 (or 5656 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 813744 is about 902.0776019833. The cubic root of 813744 is about 93.3603776504.

The spelling of 813744 in words is "eight hundred thirteen thousand, seven hundred forty-four".