812207 has 8 divisors (see below), whose sum is σ = 905472. Its totient is φ = 722200.

The previous prime is 812191. The next prime is 812213. The reversal of 812207 is 702218.

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

It is a cyclic number.

It is not a de Polignac number, because 812207 - 2⁴ = 812191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812257) 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 7 ways as a sum of consecutive naturals, for example, 269 + ... + 1302.

It is an arithmetic number, because the mean of its divisors is an integer number (113184).

2⁸¹²²⁰⁷ is an apocalyptic number.

812207 is a deficient number, since it is larger than the sum of its proper divisors (93265).

812207 is a wasteful number, since it uses less digits than its factorization.

812207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 812207 is about 901.2252770534. The cubic root of 812207 is about 93.3015608973.

The spelling of 812207 in words is "eight hundred twelve thousand, two hundred seven".