1680342227 has 4 divisors (see below), whose sum is σ = 1692431160. Its totient is φ = 1668253296.

The previous prime is 1680342217. The next prime is 1680342239. The reversal of 1680342227 is 7222430861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7222430861 = 9907 ⋅729023.

It is a cyclic number.

It is not a de Polignac number, because 1680342227 - 2²⁴ = 1663565011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1680342217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6044258 + ... + 6044535.

It is an arithmetic number, because the mean of its divisors is an integer number (423107790).

Almost surely, 2^1680342227 is an apocalyptic number.

1680342227 is a deficient number, since it is larger than the sum of its proper divisors (12088933).

1680342227 is a wasteful number, since it uses less digits than its factorization.

1680342227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12088932.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 1680342227 is about 40991.9775931828. The cubic root of 1680342227 is about 1188.8651061268.

The spelling of 1680342227 in words is "one billion, six hundred eighty million, three hundred forty-two thousand, two hundred twenty-seven".