812488 has 8 divisors (see below), whose sum is σ = 1523430. Its totient is φ = 406240.

The previous prime is 812477. The next prime is 812491. The reversal of 812488 is 884218.

It can be written as a sum of positive squares in only one way, i.e., 806404 + 6084 = 898^2 + 78^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

812488 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50773 + ... + 50788.

2⁸¹²⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

812488 is a deficient number, since it is larger than the sum of its proper divisors (710942).

812488 is a wasteful number, since it uses less digits than its factorization.

812488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101567 (or 101563 counting only the distinct ones).

The product of its digits is 4096, while the sum is 31.

The square root of 812488 is about 901.3811624391. The cubic root of 812488 is about 93.3123195322.

The spelling of 812488 in words is "eight hundred twelve thousand, four hundred eighty-eight".