948625861 has 2 divisors, whose sum is σ = 948625862. Its totient is φ = 948625860.

The previous prime is 948625849. The next prime is 948625907. The reversal of 948625861 is 168526849.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 734735236 + 213890625 = 27106^2 + 14625^2 .

It is a cyclic number.

It is not a de Polignac number, because 948625861 - 2⁵ = 948625829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (948635861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474312930 + 474312931.

It is an arithmetic number, because the mean of its divisors is an integer number (474312931).

Almost surely, 2^948625861 is an apocalyptic number.

It is an amenable number.

948625861 is a deficient number, since it is larger than the sum of its proper divisors (1).

948625861 is an equidigital number, since it uses as much as digits as its factorization.

948625861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 49.

The square root of 948625861 is about 30799.7704699240. The cubic root of 948625861 is about 982.5733634224.

The spelling of 948625861 in words is "nine hundred forty-eight million, six hundred twenty-five thousand, eight hundred sixty-one".