683404386 has 64 divisors (see below), whose sum is σ = 1657387008. Its totient is φ = 183391488.

The previous prime is 683404363. The next prime is 683404409.

683404386 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (683404363) and next prime (683404409).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 587041 + ... + 588203.

It is an arithmetic number, because the mean of its divisors is an integer number (25896672).

Almost surely, 2^683404386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 683404386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (828693504).

683404386 is an abundant number, since it is smaller than the sum of its proper divisors (973982622).

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

683404386 is a wasteful number, since it uses less digits than its factorization.

683404386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015.

The product of its (nonzero) digits is 331776, while the sum is 42.

The square root of 683404386 is about 26142.0042460405. The cubic root of 683404386 is about 880.8309927586.

The spelling of 683404386 in words is "six hundred eighty-three million, four hundred four thousand, three hundred eighty-six".