1630085 has 8 divisors (see below), whose sum is σ = 1976856. Its totient is φ = 1290240.

The previous prime is 1630051. The next prime is 1630091. The reversal of 1630085 is 5800361.

It can be written as a sum of positive squares in 4 ways, for example, as 279841 + 1350244 = 529^2 + 1162^2 .

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

It is not a de Polignac number, because 1630085 - 2⁶ = 1630021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1630085.

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, 1196 + ... + 2165.

It is an arithmetic number, because the mean of its divisors is an integer number (247107).

2^1630085 is an apocalyptic number.

It is an amenable number.

1630085 is a deficient number, since it is larger than the sum of its proper divisors (346771).

1630085 is an equidigital number, since it uses as much as digits as its factorization.

1630085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1630085 is about 1276.7478216155. The cubic root of 1630085 is about 117.6892378418.

The spelling of 1630085 in words is "one million, six hundred thirty thousand, eighty-five".