4120387 has 4 divisors (see below), whose sum is σ = 4125616. Its totient is φ = 4115160.

The previous prime is 4120331. The next prime is 4120393. The reversal of 4120387 is 7830214.

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 4120387 - 2¹¹ = 4118339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4120187) 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, 1164 + ... + 3097.

It is an arithmetic number, because the mean of its divisors is an integer number (1031404).

Almost surely, 2^4120387 is an apocalyptic number.

4120387 is a deficient number, since it is larger than the sum of its proper divisors (5229).

4120387 is an equidigital number, since it uses as much as digits as its factorization.

4120387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5228.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 4120387 is about 2029.8736413876. The cubic root of 4120387 is about 160.3169109447.

The spelling of 4120387 in words is "four million, one hundred twenty thousand, three hundred eighty-seven".