812473810 has 8 divisors (see below), whose sum is σ = 1462452876. Its totient is φ = 324989520.

The previous prime is 812473799. The next prime is 812473811. The reversal of 812473810 is 18374218.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 811167361 + 1306449 = 28481^2 + 1143^2 .

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

It is a super-2 number, since 2×812473810² = 1320227383871832200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (812473811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40623681 + ... + 40623700.

Almost surely, 2^812473810 is an apocalyptic number.

812473810 is a deficient number, since it is larger than the sum of its proper divisors (649979066).

812473810 is a wasteful number, since it uses less digits than its factorization.

812473810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81247388.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 812473810 is about 28503.9262207858. The cubic root of 812473810 is about 933.1177629974.

The spelling of 812473810 in words is "eight hundred twelve million, four hundred seventy-three thousand, eight hundred ten".