1685080413 has 12 divisors (see below), whose sum is σ = 2438290140. Its totient is φ = 1121409216.

The previous prime is 1685080399. The next prime is 1685080427. The reversal of 1685080413 is 3140805861.

1685080413 is a `hidden beast` number, since 168 + 5 + 0 + 80 + 413 = 666.

It is an interprime number because it is at equal distance from previous prime (1685080399) and next prime (1685080427).

It can be written as a sum of positive squares in 2 ways, for example, as 800493849 + 884586564 = 28293^2 + 29742^2 .

It is not a de Polignac number, because 1685080413 - 2¹² = 1685076317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685080433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159406 + ... + 169647.

It is an arithmetic number, because the mean of its divisors is an integer number (203190845).

Almost surely, 2^1685080413 is an apocalyptic number.

It is an amenable number.

1685080413 is a deficient number, since it is larger than the sum of its proper divisors (753209727).

1685080413 is a wasteful number, since it uses less digits than its factorization.

1685080413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329628 (or 329625 counting only the distinct ones).

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

The square root of 1685080413 is about 41049.7309735399. The cubic root of 1685080413 is about 1189.9815012542.

The spelling of 1685080413 in words is "one billion, six hundred eighty-five million, eighty thousand, four hundred thirteen".