948637109 has 12 divisors (see below), whose sum is σ = 1109623788. Its totient is φ = 808617600.

The previous prime is 948637091. The next prime is 948637133. The reversal of 948637109 is 901736849.

948637109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 80156209 + 868480900 = 8953^2 + 29470^2 .

It is not a de Polignac number, because 948637109 - 2¹² = 948633013 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (948637159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44612 + ... + 62349.

It is an arithmetic number, because the mean of its divisors is an integer number (92468649).

Almost surely, 2^948637109 is an apocalyptic number.

It is an amenable number.

948637109 is a deficient number, since it is larger than the sum of its proper divisors (160986679).

948637109 is a wasteful number, since it uses less digits than its factorization.

948637109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107156 (or 107149 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 948637109 is about 30799.9530681461. The cubic root of 948637109 is about 982.5772469140.

The spelling of 948637109 in words is "nine hundred forty-eight million, six hundred thirty-seven thousand, one hundred nine".