4902821 has 16 divisors (see below), whose sum is σ = 6265728. Its totient is φ = 3724800.

The previous prime is 4902811. The next prime is 4902823. The reversal of 4902821 is 1282094.

It is a cyclic number.

It is not a de Polignac number, because 4902821 - 2⁶ = 4902757 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 (4902823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2381 + ... + 3933.

It is an arithmetic number, because the mean of its divisors is an integer number (391608).

Almost surely, 2^4902821 is an apocalyptic number.

4902821 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4902821 is a deficient number, since it is larger than the sum of its proper divisors (1362907).

4902821 is a wasteful number, since it uses less digits than its factorization.

4902821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 4902821 is about 2214.2314693816. The cubic root of 4902821 is about 169.8825139805.

The spelling of 4902821 in words is "four million, nine hundred two thousand, eight hundred twenty-one".