4005707 has 4 divisors (see below), whose sum is σ = 4037376. Its totient is φ = 3974040.

The previous prime is 4005691. The next prime is 4005733. The reversal of 4005707 is 7075004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4005707 - 2⁴ = 4005691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4005767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15644 + ... + 15897.

It is an arithmetic number, because the mean of its divisors is an integer number (1009344).

Almost surely, 2^4005707 is an apocalyptic number.

4005707 is a deficient number, since it is larger than the sum of its proper divisors (31669).

4005707 is a wasteful number, since it uses less digits than its factorization.

4005707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31668.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 4005707 is about 2001.4262414588. The cubic root of 4005707 is about 158.8155634699.

The spelling of 4005707 in words is "four million, five thousand, seven hundred seven".