4123387 has 2 divisors, whose sum is σ = 4123388. Its totient is φ = 4123386.

The previous prime is 4123369. The next prime is 4123421. The reversal of 4123387 is 7833214.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4123387 is a prime.

4123387 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4123337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2061693 + 2061694.

It is an arithmetic number, because the mean of its divisors is an integer number (2061694).

Almost surely, 2^4123387 is an apocalyptic number.

4123387 is a deficient number, since it is larger than the sum of its proper divisors (1).

4123387 is an equidigital number, since it uses as much as digits as its factorization.

4123387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 4123387 is about 2030.6124691826. The cubic root of 4123387 is about 160.3558097225.

The spelling of 4123387 in words is "four million, one hundred twenty-three thousand, three hundred eighty-seven".