4227561 has 24 divisors (see below), whose sum is σ = 6866496. Its totient is φ = 2486880.

The previous prime is 4227529. The next prime is 4227571. The reversal of 4227561 is 1657224.

It is not a de Polignac number, because 4227561 - 2⁵ = 4227529 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁵ + 2¹⁴ + 2²² + 7 + 5⁶ + 6³ + 1 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4227511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1906 + ... + 3476.

It is an arithmetic number, because the mean of its divisors is an integer number (286104).

Almost surely, 2^4227561 is an apocalyptic number.

It is an amenable number.

4227561 is a deficient number, since it is larger than the sum of its proper divisors (2638935).

4227561 is a wasteful number, since it uses less digits than its factorization.

4227561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613 (or 1610 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 4227561 is about 2056.1033534334. The cubic root of 4227561 is about 161.6950137466.

The spelling of 4227561 in words is "four million, two hundred twenty-seven thousand, five hundred sixty-one".