1685703357 has 48 divisors (see below), whose sum is σ = 2810179008. Its totient is φ = 964477440.

The previous prime is 1685703353. The next prime is 1685703379. The reversal of 1685703357 is 7533075861.

It is not a de Polignac number, because 1685703357 - 2² = 1685703353 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685703353) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 159982 + ... + 170192.

It is an arithmetic number, because the mean of its divisors is an integer number (58545396).

Almost surely, 2^1685703357 is an apocalyptic number.

1685703357 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1685703357 is a deficient number, since it is larger than the sum of its proper divisors (1124475651).

1685703357 is a wasteful number, since it uses less digits than its factorization.

1685703357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10330 (or 10327 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The square root of 1685703357 is about 41057.3179469872. The cubic root of 1685703357 is about 1190.1281214594.

The spelling of 1685703357 in words is "one billion, six hundred eighty-five million, seven hundred three thousand, three hundred fifty-seven".