4092561 has 24 divisors (see below), whose sum is σ = 6555744. Its totient is φ = 2439360.

The previous prime is 4092559. The next prime is 4092587. The reversal of 4092561 is 1652904.

4092561 is a `hidden beast` number, since 409 + 256 + 1 = 666.

It is not a de Polignac number, because 4092561 - 2¹ = 4092559 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4092061) 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, 6325 + ... + 6941.

It is an arithmetic number, because the mean of its divisors is an integer number (273156).

Almost surely, 2^4092561 is an apocalyptic number.

It is an amenable number.

4092561 is a deficient number, since it is larger than the sum of its proper divisors (2463183).

4092561 is a wasteful number, since it uses less digits than its factorization.

4092561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 4092561 is about 2023.0079090305. The cubic root of 4092561 is about 159.9552088163.

The spelling of 4092561 in words is "four million, ninety-two thousand, five hundred sixty-one".