4263987 has 16 divisors (see below), whose sum is σ = 6997760. Its totient is φ = 2248992.

The previous prime is 4263979. The next prime is 4264021. The reversal of 4263987 is 7893624.

It is not a de Polignac number, because 4263987 - 2³ = 4263979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a d-powerful number, because it can be written as 4¹¹ + 2⁷ + 6³ + 3⁹ + 9² + 8⁵ + 7⁵ .

It is not an unprimeable number, because it can be changed into a prime (4263937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7537 + ... + 8082.

It is an arithmetic number, because the mean of its divisors is an integer number (437360).

Almost surely, 2^4263987 is an apocalyptic number.

4263987 is a deficient number, since it is larger than the sum of its proper divisors (2733773).

4263987 is a wasteful number, since it uses less digits than its factorization.

4263987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15642.

The product of its digits is 72576, while the sum is 39.

The square root of 4263987 is about 2064.9423720772. The cubic root of 4263987 is about 162.1580913670.

The spelling of 4263987 in words is "four million, two hundred sixty-three thousand, nine hundred eighty-seven".