4243087 has 2 divisors, whose sum is σ = 4243088. Its totient is φ = 4243086.

The previous prime is 4243069. The next prime is 4243091. The reversal of 4243087 is 7803424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4243087 is a prime.

It is equal to p₂₉₉₁₃₄ and since 4243087 and 299134 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4243067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121543 + 2121544.

It is an arithmetic number, because the mean of its divisors is an integer number (2121544).

Almost surely, 2^4243087 is an apocalyptic number.

4243087 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243087 is an equidigital number, since it uses as much as digits as its factorization.

4243087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 4243087 is about 2059.8754816736. The cubic root of 4243087 is about 161.8927171616.

The spelling of 4243087 in words is "four million, two hundred forty-three thousand, eighty-seven".