1679345685 has 48 divisors (see below), whose sum is σ = 3094565760. Its totient is φ = 840067200.

The previous prime is 1679345641. The next prime is 1679345699. The reversal of 1679345685 is 5865439761.

1679345685 is a `hidden beast` number, since 1 + 6 + 79 + 3 + 4 + 568 + 5 = 666.

It is not a de Polignac number, because 1679345685 - 2⁸ = 1679345429 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 (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76632 + ... + 96078.

It is an arithmetic number, because the mean of its divisors is an integer number (64470120).

Almost surely, 2^1679345685 is an apocalyptic number.

1679345685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1679345685 is a deficient number, since it is larger than the sum of its proper divisors (1415220075).

1679345685 is a wasteful number, since it uses less digits than its factorization.

1679345685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19578 (or 19575 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 1679345685 is about 40979.8204608073. The cubic root of 1679345685 is about 1188.6300372862.

The spelling of 1679345685 in words is "one billion, six hundred seventy-nine million, three hundred forty-five thousand, six hundred eighty-five".