4078705 has 16 divisors (see below), whose sum is σ = 5287680. Its totient is φ = 3011008.

The previous prime is 4078699. The next prime is 4078709. The reversal of 4078705 is 5078704.

It is a happy number.

4078705 is nontrivially palindromic in base 12.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4078705 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4078709) 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 15 ways as a sum of consecutive naturals, for example, 2724 + ... + 3946.

It is an arithmetic number, because the mean of its divisors is an integer number (330480).

Almost surely, 2^4078705 is an apocalyptic number.

It is an amenable number.

4078705 is a deficient number, since it is larger than the sum of its proper divisors (1208975).

4078705 is a wasteful number, since it uses less digits than its factorization.

4078705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 4078705 is about 2019.5804019647. The cubic root of 4078705 is about 159.7744869861.

Subtracting 4078705 from its reverse (5078704), we obtain a palindrome (999999).

The spelling of 4078705 in words is "four million, seventy-eight thousand, seven hundred five".