4905021 has 16 divisors (see below), whose sum is σ = 7511040. Its totient is φ = 2815920.

The previous prime is 4905007. The next prime is 4905029. The reversal of 4905021 is 1205094.

4905021 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4905021 - 2⁵ = 4904989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4905029) 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, 3285 + ... + 4538.

It is an arithmetic number, because the mean of its divisors is an integer number (469440).

Almost surely, 2^4905021 is an apocalyptic number.

It is an amenable number.

4905021 is a deficient number, since it is larger than the sum of its proper divisors (2606019).

4905021 is a wasteful number, since it uses less digits than its factorization.

4905021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7856.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 4905021 is about 2214.7282000282. The cubic root of 4905021 is about 169.9079201458.

The spelling of 4905021 in words is "four million, nine hundred five thousand, twenty-one".