686870350 has 12 divisors (see below), whose sum is σ = 1277578944. Its totient is φ = 274748120.

The previous prime is 686870339. The next prime is 686870351. The reversal of 686870350 is 53078686.

It is a junction number, because it is equal to n+sod(n) for n = 686870297 and 686870306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686870351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6868654 + ... + 6868753.

It is an arithmetic number, because the mean of its divisors is an integer number (106464912).

Almost surely, 2^686870350 is an apocalyptic number.

686870350 is a deficient number, since it is larger than the sum of its proper divisors (590708594).

686870350 is a wasteful number, since it uses less digits than its factorization.

686870350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13737419 (or 13737414 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 686870350 is about 26208.2114994518. The cubic root of 686870350 is about 882.3175610694.

The spelling of 686870350 in words is "six hundred eighty-six million, eight hundred seventy thousand, three hundred fifty".