686046460 has 48 divisors (see below), whose sum is σ = 1590648192. Its totient is φ = 246459200.

The previous prime is 686046421. The next prime is 686046463. The reversal of 686046460 is 64640686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686046463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 526 + ... + 37045.

It is an arithmetic number, because the mean of its divisors is an integer number (33138504).

Almost surely, 2^686046460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 686046460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (795324096).

686046460 is an abundant number, since it is smaller than the sum of its proper divisors (904601732).

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

686046460 is a wasteful number, since it uses less digits than its factorization.

686046460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37674 (or 37672 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 686046460 is about 26192.4886179225. The cubic root of 686046460 is about 881.9646446579.

The spelling of 686046460 in words is "six hundred eighty-six million, forty-six thousand, four hundred sixty".