4526921 has 16 divisors (see below), whose sum is σ = 5516160. Its totient is φ = 3628800.

The previous prime is 4526917. The next prime is 4526927. The reversal of 4526921 is 1296254.

It is a happy number.

It is not a de Polignac number, because 4526921 - 2² = 4526917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4526927) 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, 13265 + ... + 13601.

It is an arithmetic number, because the mean of its divisors is an integer number (344760).

Almost surely, 2^4526921 is an apocalyptic number.

It is an amenable number.

4526921 is a deficient number, since it is larger than the sum of its proper divisors (989239).

4526921 is a wasteful number, since it uses less digits than its factorization.

4526921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464.

The product of its digits is 4320, while the sum is 29.

The square root of 4526921 is about 2127.6562222314. The cubic root of 4526921 is about 165.4249346969.

The spelling of 4526921 in words is "four million, five hundred twenty-six thousand, nine hundred twenty-one".