812047 has 2 divisors, whose sum is σ = 812048. Its totient is φ = 812046.

The previous prime is 812033. The next prime is 812051. The reversal of 812047 is 740218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 812047 - 2⁷ = 811919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406023 + 406024.

It is an arithmetic number, because the mean of its divisors is an integer number (406024).

2⁸¹²⁰⁴⁷ is an apocalyptic number.

812047 is a deficient number, since it is larger than the sum of its proper divisors (1).

812047 is an equidigital number, since it uses as much as digits as its factorization.

812047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 812047 is about 901.1365046429. The cubic root of 812047 is about 93.2954338755.

The spelling of 812047 in words is "eight hundred twelve thousand, forty-seven".