4706821 has 16 divisors (see below), whose sum is σ = 5579008. Its totient is φ = 3888000.

The previous prime is 4706809. The next prime is 4706827. The reversal of 4706821 is 1286074.

It is a 4-Lehmer number, since φ(4706821) divides (4706821-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 4706821 - 2⁹ = 4706309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4706821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4706827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31096 + ... + 31246.

It is an arithmetic number, because the mean of its divisors is an integer number (348688).

It is a Poulet number, since it divides 2^4706820-1.

Almost surely, 2^4706821 is an apocalyptic number.

It is an amenable number.

4706821 is a deficient number, since it is larger than the sum of its proper divisors (872187).

4706821 is a wasteful number, since it uses less digits than its factorization.

4706821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 4706821 is about 2169.5209148565. The cubic root of 4706821 is about 167.5878621240.

It can be divided in two parts, 47068 and 21, that added together give a square (47089 = 217²).

The spelling of 4706821 in words is "four million, seven hundred six thousand, eight hundred twenty-one".