1680295 has 4 divisors (see below), whose sum is σ = 2016360. Its totient is φ = 1344232.

The previous prime is 1680277. The next prime is 1680313. The reversal of 1680295 is 5920861.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1680277) and next prime (1680313).

It is a cyclic number.

It is not a de Polignac number, because 1680295 - 2⁷ = 1680167 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 1 + 6⁸ + 8³ + 0 + 2⁵ + 9 + 5³ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168025 + ... + 168034.

It is an arithmetic number, because the mean of its divisors is an integer number (504090).

2^1680295 is an apocalyptic number.

1680295 is a deficient number, since it is larger than the sum of its proper divisors (336065).

1680295 is an equidigital number, since it uses as much as digits as its factorization.

1680295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336064.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1680295 is about 1296.2619334070. The cubic root of 1680295 is about 118.8853968106.

The spelling of 1680295 in words is "one million, six hundred eighty thousand, two hundred ninety-five".