1680127 has 8 divisors (see below), whose sum is σ = 1856736. Its totient is φ = 1512192.

The previous prime is 1680121. The next prime is 1680131. The reversal of 1680127 is 7210861.

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-1680127 is a prime.

It is a super-2 number, since 2×1680127² = 5645653472258, which contains 22 as substring.

It is a Duffinian number.

1680127 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1758 + ... + 2539.

It is an arithmetic number, because the mean of its divisors is an integer number (232092).

2^1680127 is an apocalyptic number.

1680127 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1680127 is a deficient number, since it is larger than the sum of its proper divisors (176609).

1680127 is a wasteful number, since it uses less digits than its factorization.

1680127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1680127 is about 1296.1971300693. The cubic root of 1680127 is about 118.8814345278.

Adding to 1680127 its reverse (7210861), we get a palindrome (8890988).

The spelling of 1680127 in words is "one million, six hundred eighty thousand, one hundred twenty-seven".