4812021 has 8 divisors (see below), whose sum is σ = 7128960. Its totient is φ = 3207996.

The previous prime is 4812011. The next prime is 4812043. The reversal of 4812021 is 1202184.

It is not a de Polignac number, because 4812021 - 2²² = 617717 is a prime.

It is a super-2 number, since 2×4812021² = 46311092208882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4811985 and 4812003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4812011) 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 7 ways as a sum of consecutive naturals, for example, 89085 + ... + 89138.

It is an arithmetic number, because the mean of its divisors is an integer number (891120).

Almost surely, 2^4812021 is an apocalyptic number.

It is an amenable number.

4812021 is a deficient number, since it is larger than the sum of its proper divisors (2316939).

4812021 is a wasteful number, since it uses less digits than its factorization.

4812021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178232 (or 178226 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 4812021 is about 2193.6319198991. The cubic root of 4812021 is about 168.8272337819.

The spelling of 4812021 in words is "four million, eight hundred twelve thousand, twenty-one".