845849677 has 2 divisors, whose sum is σ = 845849678. Its totient is φ = 845849676.

The previous prime is 845849579. The next prime is 845849707. The reversal of 845849677 is 776948548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 758782116 + 87067561 = 27546^2 + 9331^2 .

It is a cyclic number.

It is not a de Polignac number, because 845849677 - 2⁷ = 845849549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (845849077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422924838 + 422924839.

It is an arithmetic number, because the mean of its divisors is an integer number (422924839).

Almost surely, 2^845849677 is an apocalyptic number.

It is an amenable number.

845849677 is a deficient number, since it is larger than the sum of its proper divisors (1).

845849677 is an equidigital number, since it uses as much as digits as its factorization.

845849677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13547520, while the sum is 58.

The square root of 845849677 is about 29083.4949240974. The cubic root of 845849677 is about 945.7239684261.

The spelling of 845849677 in words is "eight hundred forty-five million, eight hundred forty-nine thousand, six hundred seventy-seven".