4855021 has 8 divisors (see below), whose sum is σ = 4964544. Its totient is φ = 4746720.

The previous prime is 4855007. The next prime is 4855027. The reversal of 4855021 is 1205584.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4855021 - 2⁵ = 4854989 is a prime.

It is a Duffinian number.

4855021 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4855027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15456 + ... + 15766.

It is an arithmetic number, because the mean of its divisors is an integer number (620568).

Almost surely, 2^4855021 is an apocalyptic number.

It is an amenable number.

4855021 is a deficient number, since it is larger than the sum of its proper divisors (109523).

4855021 is a wasteful number, since it uses less digits than its factorization.

4855021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 4855021 is about 2203.4112189966. The cubic root of 4855021 is about 169.3286207622.

The spelling of 4855021 in words is "four million, eight hundred fifty-five thousand, twenty-one".