2038705 has 4 divisors (see below), whose sum is σ = 2446452. Its totient is φ = 1630960.

The previous prime is 2038703. The next prime is 2038717. The reversal of 2038705 is 5078302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5078302 = 2 ⋅2539151.

It can be written as a sum of positive squares in 2 ways, for example, as 1317904 + 720801 = 1148^2 + 849^2 .

It is not a de Polignac number, because 2038705 - 2¹ = 2038703 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 2038705.

It is not an unprimeable number, because it can be changed into a prime (2038703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203866 + ... + 203875.

It is an arithmetic number, because the mean of its divisors is an integer number (611613).

2^2038705 is an apocalyptic number.

It is an amenable number.

2038705 is a deficient number, since it is larger than the sum of its proper divisors (407747).

2038705 is an equidigital number, since it uses as much as digits as its factorization.

2038705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407746.

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

The square root of 2038705 is about 1427.8322730629. The cubic root of 2038705 is about 126.7996717709.

The spelling of 2038705 in words is "two million, thirty-eight thousand, seven hundred five".