812474 has 8 divisors (see below), whose sum is σ = 1312500. Its totient is φ = 374976.

The previous prime is 812473. The next prime is 812477. The reversal of 812474 is 474218.

It can be written as a sum of positive squares in 2 ways, for example, as 801025 + 11449 = 895^2 + 107^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×812474² = 1320228001352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 31249 = 812474 / (8 + 1 + 2 + 4 + 7 + 4).

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (812473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15599 + ... + 15650.

2⁸¹²⁴⁷⁴ is an apocalyptic number.

812474 is a deficient number, since it is larger than the sum of its proper divisors (500026).

812474 is a wasteful number, since it uses less digits than its factorization.

812474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31264.

The product of its digits is 1792, while the sum is 26.

The square root of 812474 is about 901.3733965455. The cubic root of 812474 is about 93.3117835735.

The spelling of 812474 in words is "eight hundred twelve thousand, four hundred seventy-four".