4009705 has 32 divisors (see below), whose sum is σ = 6096384. Its totient is φ = 2466816.

The previous prime is 4009679. The next prime is 4009721. The reversal of 4009705 is 5079004.

It is a cyclic number.

It is not a de Polignac number, because 4009705 - 2⁹ = 4009193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4009705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13539 + ... + 13831.

It is an arithmetic number, because the mean of its divisors is an integer number (190512).

Almost surely, 2^4009705 is an apocalyptic number.

It is an amenable number.

4009705 is a deficient number, since it is larger than the sum of its proper divisors (2086679).

4009705 is a wasteful number, since it uses less digits than its factorization.

4009705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 4009705 is about 2002.4247801104. The cubic root of 4009705 is about 158.8683825684.

The spelling of 4009705 in words is "four million, nine thousand, seven hundred five".