845471233 has 2 divisors, whose sum is σ = 845471234. Its totient is φ = 845471232.

The previous prime is 845471213. The next prime is 845471243. The reversal of 845471233 is 332174548.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 807241744 + 38229489 = 28412^2 + 6183^2 .

It is a cyclic number.

It is not a de Polignac number, because 845471233 - 2¹³ = 845463041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 845471192 and 845471201.

It is not a weakly prime, because it can be changed into another prime (845471213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422735616 + 422735617.

It is an arithmetic number, because the mean of its divisors is an integer number (422735617).

Almost surely, 2^845471233 is an apocalyptic number.

It is an amenable number.

845471233 is a deficient number, since it is larger than the sum of its proper divisors (1).

845471233 is an equidigital number, since it uses as much as digits as its factorization.

845471233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 37.

The square root of 845471233 is about 29076.9880317752. The cubic root of 845471233 is about 945.5829043729.

The spelling of 845471233 in words is "eight hundred forty-five million, four hundred seventy-one thousand, two hundred thirty-three".