1679456685 has 8 divisors (see below), whose sum is σ = 2687130720. Its totient is φ = 895710224.

The previous prime is 1679456663. The next prime is 1679456743. The reversal of 1679456685 is 5866549761.

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

It is a cyclic number.

It is not a de Polignac number, because 1679456685 - 2¹² = 1679452589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55981875 + ... + 55981904.

It is an arithmetic number, because the mean of its divisors is an integer number (335891340).

Almost surely, 2^1679456685 is an apocalyptic number.

1679456685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1679456685 is a deficient number, since it is larger than the sum of its proper divisors (1007674035).

1679456685 is a wasteful number, since it uses less digits than its factorization.

1679456685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111963787.

The product of its digits is 10886400, while the sum is 57.

The square root of 1679456685 is about 40981.1747635423. The cubic root of 1679456685 is about 1188.6562250704.

The spelling of 1679456685 in words is "one billion, six hundred seventy-nine million, four hundred fifty-six thousand, six hundred eighty-five".