4870821 has 8 divisors (see below), whose sum is σ = 6836320. Its totient is φ = 3076272.

The previous prime is 4870819. The next prime is 4870837. The reversal of 4870821 is 1280784.

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

It is not a de Polignac number, because 4870821 - 2¹ = 4870819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4870861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42670 + ... + 42783.

It is an arithmetic number, because the mean of its divisors is an integer number (854540).

Almost surely, 2^4870821 is an apocalyptic number.

It is an amenable number.

4870821 is a deficient number, since it is larger than the sum of its proper divisors (1965499).

4870821 is a wasteful number, since it uses less digits than its factorization.

4870821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85475.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 4870821 is about 2206.9936565382. The cubic root of 4870821 is about 169.5121074530.

The spelling of 4870821 in words is "four million, eight hundred seventy thousand, eight hundred twenty-one".