4287661 has 8 divisors (see below), whose sum is σ = 4916480. Its totient is φ = 3662928.

The previous prime is 4287643. The next prime is 4287667. The reversal of 4287661 is 1667824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4287661 - 2¹⁷ = 4156589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4287667) 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 in 7 ways as a sum of consecutive naturals, for example, 1735 + ... + 3403.

It is an arithmetic number, because the mean of its divisors is an integer number (614560).

Almost surely, 2^4287661 is an apocalyptic number.

4287661 is the 1196-th hex number.

It is an amenable number.

4287661 is a deficient number, since it is larger than the sum of its proper divisors (628819).

4287661 is a wasteful number, since it uses less digits than its factorization.

4287661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043.

The product of its digits is 16128, while the sum is 34.

The square root of 4287661 is about 2070.6668008156. Note that the first 3 decimals coincide. The cubic root of 4287661 is about 162.4576426090.

The spelling of 4287661 in words is "four million, two hundred eighty-seven thousand, six hundred sixty-one".