812833403 has 2 divisors, whose sum is σ = 812833404. Its totient is φ = 812833402.

The previous prime is 812833391. The next prime is 812833421. The reversal of 812833403 is 304338218.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 812833403 - 2¹⁰ = 812832379 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 812833403.

It is not a weakly prime, because it can be changed into another prime (812833003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406416701 + 406416702.

It is an arithmetic number, because the mean of its divisors is an integer number (406416702).

Almost surely, 2^812833403 is an apocalyptic number.

812833403 is a deficient number, since it is larger than the sum of its proper divisors (1).

812833403 is an equidigital number, since it uses as much as digits as its factorization.

812833403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 812833403 is about 28510.2333031492. The cubic root of 812833403 is about 933.2554056394.

The spelling of 812833403 in words is "eight hundred twelve million, eight hundred thirty-three thousand, four hundred three".