845012797 has 2 divisors, whose sum is σ = 845012798. Its totient is φ = 845012796.

The previous prime is 845012731. The next prime is 845012837. The reversal of 845012797 is 797210548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 842102361 + 2910436 = 29019^2 + 1706^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-845012797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (845012717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422506398 + 422506399.

It is an arithmetic number, because the mean of its divisors is an integer number (422506399).

Almost surely, 2^845012797 is an apocalyptic number.

It is an amenable number.

845012797 is a deficient number, since it is larger than the sum of its proper divisors (1).

845012797 is an equidigital number, since it uses as much as digits as its factorization.

845012797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 845012797 is about 29069.1038217555. The cubic root of 845012797 is about 945.4119671090.

The spelling of 845012797 in words is "eight hundred forty-five million, twelve thousand, seven hundred ninety-seven".