4263681 has 4 divisors (see below), whose sum is σ = 5684912. Its totient is φ = 2842452.

The previous prime is 4263659. The next prime is 4263683. The reversal of 4263681 is 1863624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4263681 - 2⁹ = 4263169 is a prime.

It is a super-2 number, since 2×4263681² = 36357951339522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4263683) 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 3 ways as a sum of consecutive naturals, for example, 710611 + ... + 710616.

It is an arithmetic number, because the mean of its divisors is an integer number (1421228).

Almost surely, 2^4263681 is an apocalyptic number.

It is an amenable number.

4263681 is a deficient number, since it is larger than the sum of its proper divisors (1421231).

4263681 is a wasteful number, since it uses less digits than its factorization.

4263681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421230.

The product of its digits is 6912, while the sum is 30.

The square root of 4263681 is about 2064.8682766705. The cubic root of 4263681 is about 162.1542122462.

The spelling of 4263681 in words is "four million, two hundred sixty-three thousand, six hundred eighty-one".