4928021 has 4 divisors (see below), whose sum is σ = 5632032. Its totient is φ = 4224012.

The previous prime is 4927933. The next prime is 4928029. The reversal of 4928021 is 1208294.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4928021 - 2¹⁰ = 4926997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4928029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351995 + ... + 352008.

It is an arithmetic number, because the mean of its divisors is an integer number (1408008).

Almost surely, 2^4928021 is an apocalyptic number.

It is an amenable number.

4928021 is a deficient number, since it is larger than the sum of its proper divisors (704011).

4928021 is an equidigital number, since it uses as much as digits as its factorization.

4928021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704010.

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

The square root of 4928021 is about 2219.9146379985. The cubic root of 4928021 is about 170.1730763270.

The spelling of 4928021 in words is "four million, nine hundred twenty-eight thousand, twenty-one".