1683670385 has 16 divisors (see below), whose sum is σ = 2088786432. Its totient is φ = 1301832000.

The previous prime is 1683670367. The next prime is 1683670393. The reversal of 1683670385 is 5830763861.

It is a happy number.

It is not a de Polignac number, because 1683670385 - 2⁸ = 1683670129 is a prime.

It is a super-3 number, since 3×1683670385³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2201 + ... + 58070.

It is an arithmetic number, because the mean of its divisors is an integer number (130549152).

Almost surely, 2^1683670385 is an apocalyptic number.

It is an amenable number.

1683670385 is a deficient number, since it is larger than the sum of its proper divisors (405116047).

1683670385 is a wasteful number, since it uses less digits than its factorization.

1683670385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60464.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 1683670385 is about 41032.5527477879. The cubic root of 1683670385 is about 1189.6494942573.

The spelling of 1683670385 in words is "one billion, six hundred eighty-three million, six hundred seventy thousand, three hundred eighty-five".