684115038 has 16 divisors (see below), whose sum is σ = 1520255760. Its totient is φ = 228038328.

The previous prime is 684115027. The next prime is 684115039. The reversal of 684115038 is 830511486.

It is a junction number, because it is equal to n+sod(n) for n = 684114993 and 684115011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684115039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6334345 + ... + 6334452.

It is an arithmetic number, because the mean of its divisors is an integer number (95015985).

Almost surely, 2^684115038 is an apocalyptic number.

684115038 is an abundant number, since it is smaller than the sum of its proper divisors (836140722).

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

684115038 is a wasteful number, since it uses less digits than its factorization.

684115038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12668808 (or 12668802 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 684115038 is about 26155.5928627129. The cubic root of 684115038 is about 881.1362036854.

The spelling of 684115038 in words is "six hundred eighty-four million, one hundred fifteen thousand, thirty-eight".