4287722 has 4 divisors (see below), whose sum is σ = 6431586. Its totient is φ = 2143860.

The previous prime is 4287721. The next prime is 4287727. The reversal of 4287722 is 2277824.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3031081 + 1256641 = 1741^2 + 1121^2 .

It is not an unprimeable number, because it can be changed into a prime (4287721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071929 + ... + 1071932.

Almost surely, 2^4287722 is an apocalyptic number.

4287722 is a deficient number, since it is larger than the sum of its proper divisors (2143864).

4287722 is a wasteful number, since it uses less digits than its factorization.

4287722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143863.

The product of its digits is 12544, while the sum is 32.

The square root of 4287722 is about 2070.6815303180. The cubic root of 4287722 is about 162.4584130266.

The spelling of 4287722 in words is "four million, two hundred eighty-seven thousand, seven hundred twenty-two".