4096521 has 32 divisors (see below), whose sum is σ = 7136640. Its totient is φ = 2289600.

The previous prime is 4096517. The next prime is 4096523. The reversal of 4096521 is 1256904.

4096521 is a `hidden beast` number, since 4 + 0 + 9 + 652 + 1 = 666.

It is not a de Polignac number, because 4096521 - 2² = 4096517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (4096523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3331 + ... + 4391.

It is an arithmetic number, because the mean of its divisors is an integer number (223020).

Almost surely, 2^4096521 is an apocalyptic number.

It is an amenable number.

4096521 is a deficient number, since it is larger than the sum of its proper divisors (3040119).

4096521 is a wasteful number, since it uses less digits than its factorization.

4096521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1088 counting only the distinct ones).

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

The square root of 4096521 is about 2023.9864129979. The cubic root of 4096521 is about 160.0067835666.

The spelling of 4096521 in words is "four million, ninety-six thousand, five hundred twenty-one".