685888148 has 48 divisors (see below), whose sum is σ = 1336247808. Its totient is φ = 305424000.

The previous prime is 685888117. The next prime is 685888153. The reversal of 685888148 is 841888586.

It is a junction number, because it is equal to n+sod(n) for n = 685888093 and 685888102.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1129661 + ... + 1130267.

It is an arithmetic number, because the mean of its divisors is an integer number (27838496).

Almost surely, 2^685888148 is an apocalyptic number.

It is an amenable number.

685888148 is a deficient number, since it is larger than the sum of its proper divisors (650359660).

685888148 is a wasteful number, since it uses less digits than its factorization.

685888148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104 (or 1102 counting only the distinct ones).

The product of its digits is 3932160, while the sum is 56.

The square root of 685888148 is about 26189.4663557698. The cubic root of 685888148 is about 881.8967987532.

The spelling of 685888148 in words is "six hundred eighty-five million, eight hundred eighty-eight thousand, one hundred forty-eight".