813048 has 32 divisors (see below), whose sum is σ = 2140800. Its totient is φ = 256608.

The previous prime is 813041. The next prime is 813049. The reversal of 813048 is 840318.

It is a super-2 number, since 2×813048² = 1322094100608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 813048.

It is not an unprimeable number, because it can be changed into a prime (813041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436 + ... + 1347.

It is an arithmetic number, because the mean of its divisors is an integer number (66900).

2⁸¹³⁰⁴⁸ is an apocalyptic number.

It is an amenable number.

813048 is an abundant number, since it is smaller than the sum of its proper divisors (1327752).

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

813048 is a wasteful number, since it uses less digits than its factorization.

813048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811 (or 1807 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 813048 is about 901.6917433358. The cubic root of 813048 is about 93.3337528326. Note that the first 3 decimals are identical.

The spelling of 813048 in words is "eight hundred thirteen thousand, forty-eight".