3840007 has 2 divisors, whose sum is σ = 3840008. Its totient is φ = 3840006.

The previous prime is 3839999. The next prime is 3840017. The reversal of 3840007 is 7000483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3840007 - 2³ = 3839999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3840007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3840017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1920003 + 1920004.

It is an arithmetic number, because the mean of its divisors is an integer number (1920004).

Almost surely, 2^3840007 is an apocalyptic number.

3840007 is a deficient number, since it is larger than the sum of its proper divisors (1).

3840007 is an equidigital number, since it uses as much as digits as its factorization.

3840007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 3840007 is about 1959.5935803120. The cubic root of 3840007 is about 156.5948007997.

The spelling of 3840007 in words is "three million, eight hundred forty thousand, seven".