2070385 has 4 divisors (see below), whose sum is σ = 2484468. Its totient is φ = 1656304.

The previous prime is 2070371. The next prime is 2070421. The reversal of 2070385 is 5830702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5830702 = 2 ⋅2915351.

It can be written as a sum of positive squares in 2 ways, for example, as 1216609 + 853776 = 1103^2 + 924^2 .

It is a cyclic number.

It is not a de Polignac number, because 2070385 - 2¹⁷ = 1939313 is a prime.

It is a Duffinian number.

2070385 is a lucky 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, 207034 + ... + 207043.

It is an arithmetic number, because the mean of its divisors is an integer number (621117).

2^2070385 is an apocalyptic number.

It is an amenable number.

2070385 is a deficient number, since it is larger than the sum of its proper divisors (414083).

2070385 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 9 representation: 2070385 = (3805027)₉.

2070385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414082.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2070385 is about 1438.8832475222. The cubic root of 2070385 is about 127.4530905224.

The spelling of 2070385 in words is "two million, seventy thousand, three hundred eighty-five".