686450368 has 56 divisors (see below), whose sum is σ = 1399032000. Its totient is φ = 334057728.

The previous prime is 686450353. The next prime is 686450383. The reversal of 686450368 is 863054686.

It is an interprime number because it is at equal distance from previous prime (686450353) and next prime (686450383).

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 7 ways as a sum of consecutive naturals, for example, 403183 + ... + 404881.

Almost surely, 2^686450368 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 686450368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699516000).

686450368 is an abundant number, since it is smaller than the sum of its proper divisors (712581632).

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

686450368 is a wasteful number, since it uses less digits than its factorization.

686450368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877 (or 1867 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The square root of 686450368 is about 26200.1978618483. The cubic root of 686450368 is about 882.1376954686.

The spelling of 686450368 in words is "six hundred eighty-six million, four hundred fifty thousand, three hundred sixty-eight".