4288661 has 16 divisors (see below), whose sum is σ = 4939200. Its totient is φ = 3691008.

The previous prime is 4288637. The next prime is 4288681. The reversal of 4288661 is 1668824.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4288661 is a prime.

It is a super-2 number, since 2×4288661² = 36785226345842, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4288621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23870 + ... + 24048.

It is an arithmetic number, because the mean of its divisors is an integer number (308700).

Almost surely, 2^4288661 is an apocalyptic number.

It is an amenable number.

4288661 is a deficient number, since it is larger than the sum of its proper divisors (650539).

4288661 is a wasteful number, since it uses less digits than its factorization.

4288661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308.

The product of its digits is 18432, while the sum is 35.

The square root of 4288661 is about 2070.9082548486. The cubic root of 4288661 is about 162.4702714847.

The spelling of 4288661 in words is "four million, two hundred eighty-eight thousand, six hundred sixty-one".