945439879 has 2 divisors, whose sum is σ = 945439880. Its totient is φ = 945439878.

The previous prime is 945439849. The next prime is 945439889. The reversal of 945439879 is 978934549.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 945439879 - 2¹⁷ = 945308807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (945439849) 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, 472719939 + 472719940.

It is an arithmetic number, because the mean of its divisors is an integer number (472719940).

Almost surely, 2^945439879 is an apocalyptic number.

945439879 is a deficient number, since it is larger than the sum of its proper divisors (1).

945439879 is an equidigital number, since it uses as much as digits as its factorization.

945439879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 58.

The square root of 945439879 is about 30748.0060979570. The cubic root of 945439879 is about 981.4721311708.

The spelling of 945439879 in words is "nine hundred forty-five million, four hundred thirty-nine thousand, eight hundred seventy-nine".