4705921 has 8 divisors (see below), whose sum is σ = 5151744. Its totient is φ = 4263120.

The previous prime is 4705903. The next prime is 4705931. The reversal of 4705921 is 1295074.

It is a happy number.

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 4705921 - 2¹⁷ = 4574849 is a prime.

It is a super-3 number, since 3×4705921³ (a number of 21 digits) contains 333 as substring.

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 4705921.

It is not an unprimeable number, because it can be changed into a prime (4705931) 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, 3655 + ... + 4771.

It is an arithmetic number, because the mean of its divisors is an integer number (643968).

Almost surely, 2^4705921 is an apocalyptic number.

It is an amenable number.

4705921 is a deficient number, since it is larger than the sum of its proper divisors (445823).

4705921 is a wasteful number, since it uses less digits than its factorization.

4705921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 4705921 is about 2169.3134858752. The cubic root of 4705921 is about 167.5771798474.

The spelling of 4705921 in words is "four million, seven hundred five thousand, nine hundred twenty-one".