845637379 has 2 divisors, whose sum is σ = 845637380. Its totient is φ = 845637378.

The previous prime is 845637319. The next prime is 845637433. The reversal of 845637379 is 973736548.

It is a happy number.

845637379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 845637379 - 2⁹ = 845636867 is a prime.

It is not a weakly prime, because it can be changed into another prime (845637319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422818689 + 422818690.

It is an arithmetic number, because the mean of its divisors is an integer number (422818690).

Almost surely, 2^845637379 is an apocalyptic number.

845637379 is a deficient number, since it is larger than the sum of its proper divisors (1).

845637379 is an equidigital number, since it uses as much as digits as its factorization.

845637379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 52.

The square root of 845637379 is about 29079.8448929839. The cubic root of 845637379 is about 945.6448400608.

The spelling of 845637379 in words is "eight hundred forty-five million, six hundred thirty-seven thousand, three hundred seventy-nine".