1686933485 has 8 divisors (see below), whose sum is σ = 2043974400. Its totient is φ = 1336443984.

The previous prime is 1686933403. The next prime is 1686933491. The reversal of 1686933485 is 5843396861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1686933485 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1637285 + ... + 1638314.

It is an arithmetic number, because the mean of its divisors is an integer number (255496800).

Almost surely, 2^1686933485 is an apocalyptic number.

It is an amenable number.

1686933485 is a deficient number, since it is larger than the sum of its proper divisors (357040915).

1686933485 is a wasteful number, since it uses less digits than its factorization.

1686933485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275707.

The product of its digits is 3732480, while the sum is 53.

The square root of 1686933485 is about 41072.2958330795. The cubic root of 1686933485 is about 1190.4175464340.

It can be divided in two parts, 16869 and 33485, that multiplied together give a palindrome (564858465).

The spelling of 1686933485 in words is "one billion, six hundred eighty-six million, nine hundred thirty-three thousand, four hundred eighty-five".