1681017 has 8 divisors (see below), whose sum is σ = 2413824. Its totient is φ = 1034448.

The previous prime is 1681007. The next prime is 1681027. The reversal of 1681017 is 7101861.

It is an interprime number because it is at equal distance from previous prime (1681007) and next prime (1681027).

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

It is not a de Polignac number, because 1681017 - 2⁸ = 1680761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1681007) 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, 21513 + ... + 21590.

It is an arithmetic number, because the mean of its divisors is an integer number (301728).

2^1681017 is an apocalyptic number.

It is an amenable number.

1681017 is a deficient number, since it is larger than the sum of its proper divisors (732807).

1681017 is a wasteful number, since it uses less digits than its factorization.

1681017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43119.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 1681017 is about 1296.5403965940. The cubic root of 1681017 is about 118.9024221872.

Adding to 1681017 its reverse (7101861), we get a palindrome (8782878).

The spelling of 1681017 in words is "one million, six hundred eighty-one thousand, seventeen".