948279881 has 2 divisors, whose sum is σ = 948279882. Its totient is φ = 948279880.

The previous prime is 948279859. The next prime is 948279931. The reversal of 948279881 is 188972849.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 589518400 + 358761481 = 24280^2 + 18941^2 .

It is a cyclic number.

It is not a de Polignac number, because 948279881 - 2¹⁴ = 948263497 is a prime.

It is a super-2 number, since 2×948279881² = 1798469465418748322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (948279821) 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, 474139940 + 474139941.

It is an arithmetic number, because the mean of its divisors is an integer number (474139941).

Almost surely, 2^948279881 is an apocalyptic number.

It is an amenable number.

948279881 is a deficient number, since it is larger than the sum of its proper divisors (1).

948279881 is an equidigital number, since it uses as much as digits as its factorization.

948279881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 56.

The square root of 948279881 is about 30794.1533574151. The cubic root of 948279881 is about 982.4538951532.

The spelling of 948279881 in words is "nine hundred forty-eight million, two hundred seventy-nine thousand, eight hundred eighty-one".