686452104 has 64 divisors (see below), whose sum is σ = 2053497600. Its totient is φ = 211215168.

The previous prime is 686452099. The next prime is 686452111. The reversal of 686452104 is 401254686.

686452104 is a `hidden beast` number, since 6 + 8 + 645 + 2 + 1 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119424 + ... + 125039.

It is an arithmetic number, because the mean of its divisors is an integer number (32085900).

Almost surely, 2^686452104 is an apocalyptic number.

It is an amenable number.

686452104 is an abundant number, since it is smaller than the sum of its proper divisors (1367045496).

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

686452104 is a wasteful number, since it uses less digits than its factorization.

686452104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244491 (or 244481 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 686452104 is about 26200.2309913481. The cubic root of 686452104 is about 882.1384390959.

The spelling of 686452104 in words is "six hundred eighty-six million, four hundred fifty-two thousand, one hundred four".