845919479 has 2 divisors, whose sum is σ = 845919480. Its totient is φ = 845919478.

The previous prime is 845919433. The next prime is 845919499. The reversal of 845919479 is 974919548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 845919479 - 2²⁰ = 844870903 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (845919499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422959739 + 422959740.

It is an arithmetic number, because the mean of its divisors is an integer number (422959740).

Almost surely, 2^845919479 is an apocalyptic number.

845919479 is a deficient number, since it is larger than the sum of its proper divisors (1).

845919479 is an equidigital number, since it uses as much as digits as its factorization.

845919479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 56.

The square root of 845919479 is about 29084.6949270574. The cubic root of 845919479 is about 945.7499823505.

The spelling of 845919479 in words is "eight hundred forty-five million, nine hundred nineteen thousand, four hundred seventy-nine".