948635861 has 2 divisors, whose sum is σ = 948635862. Its totient is φ = 948635860.

The previous prime is 948635843. The next prime is 948635879. The reversal of 948635861 is 168536849.

It is a balanced prime because it is at equal distance from previous prime (948635843) and next prime (948635879).

It can be written as a sum of positive squares in only one way, i.e., 916938961 + 31696900 = 30281^2 + 5630^2 .

It is a cyclic number.

It is not a de Polignac number, because 948635861 - 2⁶ = 948635797 is a prime.

It is a super-2 number, since 2×948635861² = 1799819993550422642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (948635881) 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, 474317930 + 474317931.

It is an arithmetic number, because the mean of its divisors is an integer number (474317931).

Almost surely, 2^948635861 is an apocalyptic number.

It is an amenable number.

948635861 is a deficient number, since it is larger than the sum of its proper divisors (1).

948635861 is an equidigital number, since it uses as much as digits as its factorization.

948635861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 50.

The square root of 948635861 is about 30799.9328083683. The cubic root of 948635861 is about 982.5768160302.

The spelling of 948635861 in words is "nine hundred forty-eight million, six hundred thirty-five thousand, eight hundred sixty-one".