686448414 has 12 divisors (see below), whose sum is σ = 1487304936. Its totient is φ = 228816132.

The previous prime is 686448401. The next prime is 686448463. The reversal of 686448414 is 414844686.

It is a super-2 number, since 2×686448414² = 942422850166230792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 686448414.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19067994 + ... + 19068029.

It is an arithmetic number, because the mean of its divisors is an integer number (123942078).

Almost surely, 2^686448414 is an apocalyptic number.

686448414 is an abundant number, since it is smaller than the sum of its proper divisors (800856522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

686448414 is a wasteful number, since it uses less digits than its factorization.

686448414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38136031 (or 38136028 counting only the distinct ones).

The product of its digits is 589824, while the sum is 45.

The square root of 686448414 is about 26200.1605720270. The cubic root of 686448414 is about 882.1368584580.

It can be divided in two parts, 6864 and 48414, that added together give a triangular number (55278 = T₃₃₂).

The spelling of 686448414 in words is "six hundred eighty-six million, four hundred forty-eight thousand, four hundred fourteen".